-17.62% is the change from 596 to 491
Calculation steps:
[( 491 - 596 ) ÷ 596] x 100 = -17.62%
Formula
Percentage change = [(491 - 596) / 596] x 100
Subtract the new number by the original number
491 - 596 = -105
-105 ÷ 596 = -0.1761744966442953
-0.1761744966442953 x 100 = -17.62%