38.73% is the change from 661 to 917
Calculation steps:
[( 917 - 661 ) ÷ 661] x 100 = 38.73%
Formula
Percentage change = [(917 - 661) / 661] x 100
Subtract the new number by the original number
917 - 661 = 256
256 ÷ 661 = 0.38729198184568836
0.38729198184568836 x 100 = 38.73%