25% is the change from 272 to 340
Calculation steps:
[( 340 - 272 ) ÷ 272] x 100 = 25%
Formula
Percentage change = [(340 - 272) / 272] x 100
Subtract the new number by the original number
340 - 272 = 68
68 ÷ 272 = 0.25
0.25 x 100 = 25%
Example