-10.92% is the change from 357 to 318
Calculation steps:
[( 318 - 357 ) ÷ 357] x 100 = -10.92%
Formula
Percentage change = [(318 - 357) / 357] x 100
Subtract the new number by the original number
318 - 357 = -39
-39 ÷ 357 = -0.1092436974789916
-0.1092436974789916 x 100 = -10.92%