52.16% is the change from 278 to 423
Calculation steps:
[( 423 - 278 ) ÷ 278] x 100 = 52.16%
Formula
Percentage change = [(423 - 278) / 278] x 100
Subtract the new number by the original number
423 - 278 = 145
145 ÷ 278 = 0.5215827338129496
0.5215827338129496 x 100 = 52.16%