-70.6% is the change from 813 to 239
Calculation steps:
[( 239 - 813 ) ÷ 813] x 100 = -70.6%
Formula
Percentage change = [(239 - 813) / 813] x 100
Subtract the new number by the original number
239 - 813 = -574
-574 ÷ 813 = -0.7060270602706027
-0.7060270602706027 x 100 = -70.6%