-29.32% is the change from 324 to 229
Calculation steps:
[( 229 - 324 ) ÷ 324] x 100 = -29.32%
Formula
Percentage change = [(229 - 324) / 324] x 100
Subtract the new number by the original number
229 - 324 = -95
-95 ÷ 324 = -0.2932098765432099
-0.2932098765432099 x 100 = -29.32%