-77.75% is the change from 800 to 178
Calculation steps:
[( 178 - 800 ) ÷ 800] x 100 = -77.75%
Formula
Percentage change = [(178 - 800) / 800] x 100
Subtract the new number by the original number
178 - 800 = -622
-622 ÷ 800 = -0.7775
-0.7775 x 100 = -77.75%