20.42% is the change from 661 to 796
Calculation steps:
[( 796 - 661 ) ÷ 661] x 100 = 20.42%
Formula
Percentage change = [(796 - 661) / 661] x 100
Subtract the new number by the original number
796 - 661 = 135
135 ÷ 661 = 0.2042360060514372
0.2042360060514372 x 100 = 20.42%