-73.87% is the change from 597 to 156
Calculation steps:
[( 156 - 597 ) ÷ 597] x 100 = -73.87%
Formula
Percentage change = [(156 - 597) / 597] x 100
Subtract the new number by the original number
156 - 597 = -441
-441 ÷ 597 = -0.7386934673366834
-0.7386934673366834 x 100 = -73.87%