41.91% is the change from 661 to 938
Calculation steps:
[( 938 - 661 ) ÷ 661] x 100 = 41.91%
Formula
Percentage change = [(938 - 661) / 661] x 100
Subtract the new number by the original number
938 - 661 = 277
277 ÷ 661 = 0.41906202723146746
0.41906202723146746 x 100 = 41.91%