-68.52% is the change from 324 to 102
Calculation steps:
[( 102 - 324 ) ÷ 324] x 100 = -68.52%
Formula
Percentage change = [(102 - 324) / 324] x 100
Subtract the new number by the original number
102 - 324 = -222
-222 ÷ 324 = -0.6851851851851852
-0.6851851851851852 x 100 = -68.52%