37.52% is the change from 661 to 909
Calculation steps:
[( 909 - 661 ) ÷ 661] x 100 = 37.52%
Formula
Percentage change = [(909 - 661) / 661] x 100
Subtract the new number by the original number
909 - 661 = 248
248 ÷ 661 = 0.3751891074130106
0.3751891074130106 x 100 = 37.52%