20.37% is the change from 270 to 325
Calculation steps:
[( 325 - 270 ) ÷ 270] x 100 = 20.37%
Formula
Percentage change = [(325 - 270) / 270] x 100
Subtract the new number by the original number
325 - 270 = 55
55 ÷ 270 = 0.2037037037037037
0.2037037037037037 x 100 = 20.37%