-99.38% is the change from 813 to 5
Calculation steps:
[( 5 - 813 ) ÷ 813] x 100 = -99.38%
Formula
Percentage change = [(5 - 813) / 813] x 100
Subtract the new number by the original number
5 - 813 = -808
-808 ÷ 813 = -0.993849938499385
-0.993849938499385 x 100 = -99.38%