43.54% is the change from 666 to 956
Calculation steps:
[( 956 - 666 ) ÷ 666] x 100 = 43.54%
Formula
Percentage change = [(956 - 666) / 666] x 100
Subtract the new number by the original number
956 - 666 = 290
290 ÷ 666 = 0.43543543543543545
0.43543543543543545 x 100 = 43.54%