-93.5% is the change from 800 to 52
Calculation steps:
[( 52 - 800 ) ÷ 800] x 100 = -93.5%
Formula
Percentage change = [(52 - 800) / 800] x 100
Subtract the new number by the original number
52 - 800 = -748
-748 ÷ 800 = -0.935
-0.935 x 100 = -93.5%
Example