39.81% is the change from 628 to 878
Calculation steps:
[( 878 - 628 ) ÷ 628] x 100 = 39.81%
Formula
Percentage change = [(878 - 628) / 628] x 100
Subtract the new number by the original number
878 - 628 = 250
250 ÷ 628 = 0.3980891719745223
0.3980891719745223 x 100 = 39.81%