-87.27% is the change from 597 to 76
Calculation steps:
[( 76 - 597 ) ÷ 597] x 100 = -87.27%
Formula
Percentage change = [(76 - 597) / 597] x 100
Subtract the new number by the original number
76 - 597 = -521
-521 ÷ 597 = -0.8726968174204355
-0.8726968174204355 x 100 = -87.27%