-93.27% is the change from 817 to 55
Calculation steps:
[( 55 - 817 ) ÷ 817] x 100 = -93.27%
Formula
Percentage change = [(55 - 817) / 817] x 100
Subtract the new number by the original number
55 - 817 = -762
-762 ÷ 817 = -0.9326805385556916
-0.9326805385556916 x 100 = -93.27%