86.55% is the change from 357 to 666
Calculation steps:
[( 666 - 357 ) ÷ 357] x 100 = 86.55%
Formula
Percentage change = [(666 - 357) / 357] x 100
Subtract the new number by the original number
666 - 357 = 309
309 ÷ 357 = 0.865546218487395
0.865546218487395 x 100 = 86.55%