-58% is the change from 800 to 336
Calculation steps:
[( 336 - 800 ) ÷ 800] x 100 = -58%
Formula
Percentage change = [(336 - 800) / 800] x 100
Subtract the new number by the original number
336 - 800 = -464
-464 ÷ 800 = -0.58
-0.58 x 100 = -58%
Example