-74.2% is the change from 597 to 154
Calculation steps:
[( 154 - 597 ) ÷ 597] x 100 = -74.2%
Formula
Percentage change = [(154 - 597) / 597] x 100
Subtract the new number by the original number
154 - 597 = -443
-443 ÷ 597 = -0.7420435510887772
-0.7420435510887772 x 100 = -74.2%