-93.64% is the change from 817 to 52
Calculation steps:
[( 52 - 817 ) ÷ 817] x 100 = -93.64%
Formula
Percentage change = [(52 - 817) / 817] x 100
Subtract the new number by the original number
52 - 817 = -765
-765 ÷ 817 = -0.9363525091799265
-0.9363525091799265 x 100 = -93.64%