126.29% is the change from 388 to 878
Calculation steps:
[( 878 - 388 ) ÷ 388] x 100 = 126.29%
Formula
Percentage change = [(878 - 388) / 388] x 100
Subtract the new number by the original number
878 - 388 = 490
490 ÷ 388 = 1.2628865979381443
1.2628865979381443 x 100 = 126.29%