-99.38% is the change from 811 to 5
Calculation steps:
[( 5 - 811 ) ÷ 811] x 100 = -99.38%
Formula
Percentage change = [(5 - 811) / 811] x 100
Subtract the new number by the original number
5 - 811 = -806
-806 ÷ 811 = -0.9938347718865598
-0.9938347718865598 x 100 = -99.38%