54.41% is the change from 272 to 420
Calculation steps:
[( 420 - 272 ) ÷ 272] x 100 = 54.41%
Formula
Percentage change = [(420 - 272) / 272] x 100
Subtract the new number by the original number
420 - 272 = 148
148 ÷ 272 = 0.5441176470588235
0.5441176470588235 x 100 = 54.41%