71.94% is the change from 278 to 478
Calculation steps:
[( 478 - 278 ) ÷ 278] x 100 = 71.94%
Formula
Percentage change = [(478 - 278) / 278] x 100
Subtract the new number by the original number
478 - 278 = 200
200 ÷ 278 = 0.7194244604316546
0.7194244604316546 x 100 = 71.94%