-1.01% is the change from 597 to 591
Calculation steps:
[( 591 - 597 ) ÷ 597] x 100 = -1.01%
Formula
Percentage change = [(591 - 597) / 597] x 100
Subtract the new number by the original number
591 - 597 = -6
-6 ÷ 597 = -0.010050251256281407
-0.010050251256281407 x 100 = -1.01%