-39.15% is the change from 355 to 216
Calculation steps:
[( 216 - 355 ) ÷ 355] x 100 = -39.15%
Formula
Percentage change = [(216 - 355) / 355] x 100
Subtract the new number by the original number
216 - 355 = -139
-139 ÷ 355 = -0.39154929577464787
-0.39154929577464787 x 100 = -39.15%