-70.06% is the change from 324 to 97
Calculation steps:
[( 97 - 324 ) ÷ 324] x 100 = -70.06%
Formula
Percentage change = [(97 - 324) / 324] x 100
Subtract the new number by the original number
97 - 324 = -227
-227 ÷ 324 = -0.7006172839506173
-0.7006172839506173 x 100 = -70.06%