-88.87% is the change from 593 to 66
Calculation steps:
[( 66 - 593 ) ÷ 593] x 100 = -88.87%
Formula
Percentage change = [(66 - 593) / 593] x 100
Subtract the new number by the original number
66 - 593 = -527
-527 ÷ 593 = -0.8887015177065767
-0.8887015177065767 x 100 = -88.87%