-70.85% is the change from 813 to 237
Calculation steps:
[( 237 - 813 ) ÷ 813] x 100 = -70.85%
Formula
Percentage change = [(237 - 813) / 813] x 100
Subtract the new number by the original number
237 - 813 = -576
-576 ÷ 813 = -0.7084870848708487
-0.7084870848708487 x 100 = -70.85%