-65.22% is the change from 230 to 80
Calculation steps:
[( 80 - 230 ) ÷ 230] x 100 = -65.22%
Formula
Percentage change = [(80 - 230) / 230] x 100
Subtract the new number by the original number
80 - 230 = -150
-150 ÷ 230 = -0.6521739130434783
-0.6521739130434783 x 100 = -65.22%