-32.72% is the change from 324 to 218
Calculation steps:
[( 218 - 324 ) ÷ 324] x 100 = -32.72%
Formula
Percentage change = [(218 - 324) / 324] x 100
Subtract the new number by the original number
218 - 324 = -106
-106 ÷ 324 = -0.3271604938271605
-0.3271604938271605 x 100 = -32.72%