-11.11% is the change from 324 to 288
Calculation steps:
[( 288 - 324 ) ÷ 324] x 100 = -11.11%
Formula
Percentage change = [(288 - 324) / 324] x 100
Subtract the new number by the original number
288 - 324 = -36
-36 ÷ 324 = -0.1111111111111111
-0.1111111111111111 x 100 = -11.11%