-70.48% is the change from 813 to 240
Calculation steps:
[( 240 - 813 ) ÷ 813] x 100 = -70.48%
Formula
Percentage change = [(240 - 813) / 813] x 100
Subtract the new number by the original number
240 - 813 = -573
-573 ÷ 813 = -0.7047970479704797
-0.7047970479704797 x 100 = -70.48%