-87.6% is the change from 597 to 74
Calculation steps:
[( 74 - 597 ) ÷ 597] x 100 = -87.6%
Formula
Percentage change = [(74 - 597) / 597] x 100
Subtract the new number by the original number
74 - 597 = -523
-523 ÷ 597 = -0.8760469011725294
-0.8760469011725294 x 100 = -87.6%