-17.2% is the change from 593 to 491
Calculation steps:
[( 491 - 593 ) ÷ 593] x 100 = -17.2%
Formula
Percentage change = [(491 - 593) / 593] x 100
Subtract the new number by the original number
491 - 593 = -102
-102 ÷ 593 = -0.17200674536256325
-0.17200674536256325 x 100 = -17.2%