52.52% is the change from 278 to 424
Calculation steps:
[( 424 - 278 ) ÷ 278] x 100 = 52.52%
Formula
Percentage change = [(424 - 278) / 278] x 100
Subtract the new number by the original number
424 - 278 = 146
146 ÷ 278 = 0.5251798561151079
0.5251798561151079 x 100 = 52.52%