-78.88% is the change from 800 to 169
Calculation steps:
[( 169 - 800 ) ÷ 800] x 100 = -78.88%
Formula
Percentage change = [(169 - 800) / 800] x 100
Subtract the new number by the original number
169 - 800 = -631
-631 ÷ 800 = -0.78875
-0.78875 x 100 = -78.88%