-0.17% is the change from 597 to 596
Calculation steps:
[( 596 - 597 ) ÷ 597] x 100 = -0.17%
Formula
Percentage change = [(596 - 597) / 597] x 100
Subtract the new number by the original number
596 - 597 = -1
-1 ÷ 597 = -0.0016750418760469012
-0.0016750418760469012 x 100 = -0.17%