Percentage Increase Calculator — Formula & Examples

⚡ RESPUESTA RÁPIDA

Percentage increase formula: % = ((New Value − Old Value) ÷ Old Value) × 100. Example: salary from $14,000 to $16,100 → ((16,100−14,000)÷14,000)×100 = +15%. Always divide by the ORIGINAL value.

How to Calculate Percentage Increase — 3 Steps

Subtract: New − Old$16,100 − $14,000 = $2,100 (the increase amount).

Divide by the Original value$2,100 ÷ $14,000 = 0.15

Multiply by 1000.15 × 100 = +15% increase.

Quick Reference Table

Original	New Value	Increase	% Increase
$100	$120	$20	+20%
$14,000	$16,100	$2,100	+15%
$50	$75	$25	+50%
$200	$230	$30	+15%
$1,000	$1,080	$80	+8%

12 Percentage Increase Examples

$80 → $100

+25%

$500 → $600

+20%

$14k → $16.1k

+15%

100 → 115

+15%

$25 → $30

+20%

$9 → $10

+11.1%

$200 → $260

+30%

$1,200 → $1,500

+25%

50 → 73

+46%

$8.50 → $9.35

+10%

$60 → $78

+30%

$45 → $54

+20%

Percentage Increase vs Percentage Change

Percentage increase specifically means the new value is HIGHER than the original. If the new value is lower, it's a percentage decrease. The formula is the same — the sign tells you which one it is. Positive result = increase. Negative result = decrease.

Common Mistakes

Dividing by the new value instead of the original: always use the starting value as the denominator.
Confusing percentage points with percent increase: a rate going from 4% to 6% is a 2 percentage point increase, but a 50% increase in relative terms.
Adding percentage increases directly: two consecutive +10% increases give +21%, not +20%.