-75.13% is the change from 800 to 199
Calculation steps:
[( 199 - 800 ) ÷ 800] x 100 = -75.13%
Formula
Percentage change = [(199 - 800) / 800] x 100
Subtract the new number by the original number
199 - 800 = -601
-601 ÷ 800 = -0.75125
-0.75125 x 100 = -75.13%