-12.96% is the change from 324 to 282
Calculation steps:
[( 282 - 324 ) ÷ 324] x 100 = -12.96%
Formula
Percentage change = [(282 - 324) / 324] x 100
Subtract the new number by the original number
282 - 324 = -42
-42 ÷ 324 = -0.12962962962962962
-0.12962962962962962 x 100 = -12.96%