-15.35% is the change from 593 to 502
Calculation steps:
[( 502 - 593 ) ÷ 593] x 100 = -15.35%
Formula
Percentage change = [(502 - 593) / 593] x 100
Subtract the new number by the original number
502 - 593 = -91
-91 ÷ 593 = -0.15345699831365936
-0.15345699831365936 x 100 = -15.35%