Back to Class VII Mathematics
Classes VII & VIII Mathematics

Chapter 8: Comparing Quantities

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Percentage Increase/Decrease Calculator

Calculate the percentage change between an initial and a final value, determining whether it represents an increase or decrease.

Live Solver

Adjust Inputs

200
250

Calculated Results

Percentage Change
25
Change Direction
Increase

Student Solver & Visualizer Guide

Real-time calculations

Step-by-step solving

1. Note initial starting point: 200
2. Note final comparison point: 250
3. Calculate absolute difference: 250 - 200 = 50
4. Divide the difference by the initial value: (50) / 200 = 0.2500
5. Multiply by 100 to convert to percentage change:
- 0.2500 × 100 = 25%
6. Direction of shift is positive, resulting in a percentage **Increase**.

Student-friendly explanations

"Percentage change compares how much a value grows or shrinks relative to where it started. Going from 200 to 250 is a flat increase of 50 units. Because 50 represents exactly 25% of the starting 200, your value has experienced a **25% Increase**!"

Visual explanations

Initial: [████████] (200)
Shift:   [████████ + ██] (250)