-20.06% is the change from 324 to 259
Calculation steps:
[( 259 - 324 ) ÷ 324] x 100 = -20.06%
Formula
Percentage change = [(259 - 324) / 324] x 100
Subtract the new number by the original number
259 - 324 = -65
-65 ÷ 324 = -0.2006172839506173
-0.2006172839506173 x 100 = -20.06%