-93.93% is the change from 659 to 40
Calculation steps:
[( 40 - 659 ) ÷ 659] x 100 = -93.93%
Formula
Percentage change = [(40 - 659) / 659] x 100
Subtract the new number by the original number
40 - 659 = -619
-619 ÷ 659 = -0.9393019726858877
-0.9393019726858877 x 100 = -93.93%