-19.93% is the change from 597 to 478
Calculation steps:
[( 478 - 597 ) ÷ 597] x 100 = -19.93%
Formula
Percentage change = [(478 - 597) / 597] x 100
Subtract the new number by the original number
478 - 597 = -119
-119 ÷ 597 = -0.19932998324958123
-0.19932998324958123 x 100 = -19.93%