-74.38% is the change from 324 to 83
Calculation steps:
[( 83 - 324 ) ÷ 324] x 100 = -74.38%
Formula
Percentage change = [(83 - 324) / 324] x 100
Subtract the new number by the original number
83 - 324 = -241
-241 ÷ 324 = -0.7438271604938271
-0.7438271604938271 x 100 = -74.38%