Percentage Calculations Quiz

Percentage Calculations

Definition: A percentage is a fraction expressed as a part of 100; it represents how many parts out of 100.
Basic Formula:
- Percentage (%) = (Part / Whole) × 100
Calculating Percentages:
- To find the percentage of a number:
  - Example: What is 20% of 200?
    - Calculation: (20/100) × 200 = 40
- To calculate what percentage one number is of another:
  - Example: What percentage is 30 of 150?
    - Calculation: (30/150) × 100 = 20%
Common Percentage Values:
- 10% = 0.1 (1/10)
- 20% = 0.2 (1/5)
- 25% = 0.25 (1/4)
- 50% = 0.5 (1/2)
- 75% = 0.75 (3/4)
- 100% = 1 (whole)
Increase/Decrease Calculations:
- To find the percentage increase:
  - Formula: Percentage Increase = ((New Value - Original Value) / Original Value) × 100
- To find the percentage decrease:
  - Formula: Percentage Decrease = ((Original Value - New Value) / Original Value) × 100
Conversions Between Percentages and Decimals:
- To convert a percentage to a decimal: Divide by 100.
  - Example: 25% = 25/100 = 0.25
- To convert a decimal to a percentage: Multiply by 100.
  - Example: 0.75 = 0.75 × 100 = 75%
Applications:
- Used in finance for calculating interest rates, discounts, taxes, and growth rates.
- Important in statistics for data interpretation and comparative analysis.
Real-Life Examples:
- Discounts in shopping: If an item is 50witha1050 with a 10% discount, savings = (10/100) × 50 = 50witha105.
- Exam scores: If a student scores 80 out of 100, percentage = (80/100) × 100 = 80%.
Tip: Always ensure to check if you need to perform calculations relative to a whole (the original) or to compare parts among multiple items/situations.

Percentages

A percentage represents a fraction out of 100, indicating how many parts are present in a whole.
The formula for calculating percentages is: (Part / Whole) × 100.
To find the percentage of a specific number, divide the part by the whole and multiply by 100.
Calculating what percentage one number represents of another involves dividing the smaller number (part) by the larger number (whole) and then multiplying by 100.
Several common percentage values are frequently used: 10%, 20%, 25%, 50%, 75%, and 100%. These values correspond to specific fractions of a whole, simplifying calculations.
Calculating percentage increase involves subtracting the original value from the new value, dividing the difference by the original value, and then multiplying by 100.
Percentage decrease is calculated similarly, but the difference is between the original value and the new value, divided by the original value and multiplied by 100.
To convert percentages to decimals, divide the percentage by 100.
Converting decimals to percentages involves multiplying the decimal by 100.

Applications

Percentages are extensively used in finance for calculating interest rates, discounts, taxes, and growth rates, providing valuable insights into financial performance and decision-making.
In statistics, percentages are crucial for data interpretation and comparative analysis, allowing us to understand trends and relationships within datasets.
Percentages are applied in everyday situations, such as calculating discounts on purchases, evaluating exam scores, and understanding financial reports.
When working with percentages, it's crucial to determine whether the calculations should be performed relative to a whole (original value) or compared across different parts (items or situations).

ITES Admin Plant System Procedures

Provide IT Support:
- Ensure LAN Switches and Routers are working
- Ensure LAN and WAN Network Link Status
- Ensure Internet Connectivity
- Ensure Domain Server is Operational
- Ensure End User Workstations are Functional
- Verify SAP and Other Applications are Working
- Confirm CCTV and Vision System are Working
- Verify Daily Backups are Completed Successfully
- Ensure IOT Devices are Functioning
- Confirm SCADA and PLC System Status
- Provide IT Support for Network and System - Internal and External
- Provide IT Infrastructure Support across Business Systems
  - Provide Level 1 & 2 Support and Troubleshooting
Log and Track Incidents:
- Log all incidents and requests on the Helpdesk System
- Carry out daily operational tasks, administration, and system monitoring to ensure IT Systems functionality

Checking Network Status

LAN & WAN Network:
Configured in Network View Tool
Monitored to track network status.
Red color indicates a link down, requiring a support ticket with ISP
WAN Network:
Monitored via Tata Communication Portal
Identifies WAN Network status
Internet Working Status:
Logged into Tata Customer Portal
Monitored through Service Quality & Performance Metrics
Performance Reports provide details of the Internet Trend
Circuit ID must be selected to view details

Ensuring Domain Server Working Status

Domain Server:
Log into the Windows Domain Controller → Command Prompt → Type dcdiag.exe command and execute
Log into the Windows Domain Controller → Command Prompt → Type nslookup.exe command and execute
Verify the domain controller/file server Hard Disk Storage

Ensuring End User Workstations Working Status

Systems are mapped in the Network View tool:
- Issues should be resolved or the system replaced by the ITES administrator/assistant administrator.
- Issues should be addressed via a phone call, email, or Google Chat.
- Issues are logged into the SysAid help desk portal after resolving.

Operating System, Licensed Application/Software Installation

Licensed Applications/Software:
- Before installing the operating system, application, or software, the ITES Admin/assistant administrator must verify the software license/product activation key.
- BPO approval is necessary for administrator rights to the system user
- For operating system installation, an operating system license key or authorization from the Corporate ITES department is required.
- IT Head/GM-IT & Chief Operating Officer Approval is necessary for installing Microsoft Office and AutoCAD products.
- Unauthorized installations/test runs of software are not permitted.
- Get an acknowledgement signature from the end user after installation.

Enable Remote Desktop Service

Remote desktop members should be added.
Update the Computer Asset Number in the Description field.

SysAid Helpdesk Incident Register

Records all incidents.

IT Support Help Desk - Service Ticket Creation

Plant system users can raise service requests related to ITES via the SysAid help desk portal at http://helpdesk.hatsun.biz:8080
The HAP AD credentials are used for the SysAid help desk portal user name and password.

CCTV System Monitoring

When a CCTV system issue is reported:
- Login to the CCTV NVR/DVR and troubleshoot the issue.
- Check if the CCTV cameras are working.

Troubleshooting CCTV System

If no response from CCTV cameras:
- Check the DVR/NVR IP address ping.
- Check the DVR/NVR network cable for issues.
- Check the faulty Camera Network IP address ping.
- Check the PoE switch for Camera Cable connectivity.