-29.01% is the change from 324 to 230
Calculation steps:
[( 230 - 324 ) ÷ 324] x 100 = -29.01%
Formula
Percentage change = [(230 - 324) / 324] x 100
Subtract the new number by the original number
230 - 324 = -94
-94 ÷ 324 = -0.29012345679012347
-0.29012345679012347 x 100 = -29.01%