-18.09% is the change from 597 to 489
Calculation steps:
[( 489 - 597 ) ÷ 597] x 100 = -18.09%
Formula
Percentage change = [(489 - 597) / 597] x 100
Subtract the new number by the original number
489 - 597 = -108
-108 ÷ 597 = -0.18090452261306533
-0.18090452261306533 x 100 = -18.09%