-56.34% is the change from 355 to 155
Calculation steps:
[( 155 - 355 ) ÷ 355] x 100 = -56.34%
Formula
Percentage change = [(155 - 355) / 355] x 100
Subtract the new number by the original number
155 - 355 = -200
-200 ÷ 355 = -0.5633802816901409
-0.5633802816901409 x 100 = -56.34%