32.83% is the change from 661 to 878
Calculation steps:
[( 878 - 661 ) ÷ 661] x 100 = 32.83%
Formula
Percentage change = [(878 - 661) / 661] x 100
Subtract the new number by the original number
878 - 661 = 217
217 ÷ 661 = 0.32829046898638425
0.32829046898638425 x 100 = 32.83%