-73.2% is the change from 597 to 160
Calculation steps:
[( 160 - 597 ) ÷ 597] x 100 = -73.2%
Formula
Percentage change = [(160 - 597) / 597] x 100
Subtract the new number by the original number
160 - 597 = -437
-437 ÷ 597 = -0.7319932998324958
-0.7319932998324958 x 100 = -73.2%