-13.15% is the change from 593 to 515
Calculation steps:
[( 515 - 593 ) ÷ 593] x 100 = -13.15%
Formula
Percentage change = [(515 - 593) / 593] x 100
Subtract the new number by the original number
515 - 593 = -78
-78 ÷ 593 = -0.1315345699831366
-0.1315345699831366 x 100 = -13.15%