-78% is the change from 800 to 176
Calculation steps:
[( 176 - 800 ) ÷ 800] x 100 = -78%
Formula
Percentage change = [(176 - 800) / 800] x 100
Subtract the new number by the original number
176 - 800 = -624
-624 ÷ 800 = -0.78
-0.78 x 100 = -78%
Example