How to calculate increase with percentage

New = base × (1 + p/100); Increase = base × p/100.

Key Concepts

• Concept: Percent as a fraction
• Concept: Increase amount vs final value
• Concept: Decimal vs percentage form

Steps

1. Action: Convert percent to decimal: d = p/100
2. Action: Compute increase: inc = base × d
3. Action: Compute new value: new = base + inc

Formula

Increase: $$text{Increase} = text{base} times frac{p}{100}$$

New value: $$text{New value} = text{base} times left(1 + frac{p}{100}right)$$