-52.16% is the change from 324 to 155
Calculation steps:
[( 155 - 324 ) ÷ 324] x 100 = -52.16%
Formula
Percentage change = [(155 - 324) / 324] x 100
Subtract the new number by the original number
155 - 324 = -169
-169 ÷ 324 = -0.5216049382716049
-0.5216049382716049 x 100 = -52.16%