-56.75% is the change from 800 to 346
Calculation steps:
[( 346 - 800 ) ÷ 800] x 100 = -56.75%
Formula
Percentage change = [(346 - 800) / 800] x 100
Subtract the new number by the original number
346 - 800 = -454
-454 ÷ 800 = -0.5675
-0.5675 x 100 = -56.75%