47.5% is the change from 661 to 975
Calculation steps:
[( 975 - 661 ) ÷ 661] x 100 = 47.5%
Formula
Percentage change = [(975 - 661) / 661] x 100
Subtract the new number by the original number
975 - 661 = 314
314 ÷ 661 = 0.4750378214826021
0.4750378214826021 x 100 = 47.5%