-37.75% is the change from 355 to 221
Calculation steps:
[( 221 - 355 ) ÷ 355] x 100 = -37.75%
Formula
Percentage change = [(221 - 355) / 355] x 100
Subtract the new number by the original number
221 - 355 = -134
-134 ÷ 355 = -0.37746478873239436
-0.37746478873239436 x 100 = -37.75%