41.59% is the change from 666 to 943
Calculation steps:
[( 943 - 666 ) ÷ 666] x 100 = 41.59%
Formula
Percentage change = [(943 - 666) / 666] x 100
Subtract the new number by the original number
943 - 666 = 277
277 ÷ 666 = 0.4159159159159159
0.4159159159159159 x 100 = 41.59%