-18.59% is the change from 597 to 486
Calculation steps:
[( 486 - 597 ) ÷ 597] x 100 = -18.59%
Formula
Percentage change = [(486 - 597) / 597] x 100
Subtract the new number by the original number
486 - 597 = -111
-111 ÷ 597 = -0.18592964824120603
-0.18592964824120603 x 100 = -18.59%