580% is the change from 40 to 272
Calculation steps:
[( 272 - 40 ) ÷ 40] x 100 = 580%
Formula
Percentage change = [(272 - 40) / 40] x 100
Subtract the new number by the original number
272 - 40 = 232
232 ÷ 40 = 5.8
5.8 x 100 = 580%
Example