39.64% is the change from 661 to 923
Calculation steps:
[( 923 - 661 ) ÷ 661] x 100 = 39.64%
Formula
Percentage change = [(923 - 661) / 661] x 100
Subtract the new number by the original number
923 - 661 = 262
262 ÷ 661 = 0.39636913767019666
0.39636913767019666 x 100 = 39.64%