-69.13% is the change from 800 to 247
Calculation steps:
[( 247 - 800 ) ÷ 800] x 100 = -69.13%
Formula
Percentage change = [(247 - 800) / 800] x 100
Subtract the new number by the original number
247 - 800 = -553
-553 ÷ 800 = -0.69125
-0.69125 x 100 = -69.13%