-86.49% is the change from 592 to 80
Calculation steps:
[( 80 - 592 ) ÷ 592] x 100 = -86.49%
Formula
Percentage change = [(80 - 592) / 592] x 100
Subtract the new number by the original number
80 - 592 = -512
-512 ÷ 592 = -0.8648648648648649
-0.8648648648648649 x 100 = -86.49%