300% is the change from 72 to 288
Calculation steps:
[( 288 - 72 ) ÷ 72] x 100 = 300%
Formula
Percentage change = [(288 - 72) / 72] x 100
Subtract the new number by the original number
288 - 72 = 216
216 ÷ 72 = 3
3 x 100 = 300%
Example