-29.94% is the change from 324 to 227
Calculation steps:
[( 227 - 324 ) ÷ 324] x 100 = -29.94%
Formula
Percentage change = [(227 - 324) / 324] x 100
Subtract the new number by the original number
227 - 324 = -97
-97 ÷ 324 = -0.2993827160493827
-0.2993827160493827 x 100 = -29.94%