-12.63% is the change from 800 to 699
Calculation steps:
[( 699 - 800 ) ÷ 800] x 100 = -12.63%
Formula
Percentage change = [(699 - 800) / 800] x 100
Subtract the new number by the original number
699 - 800 = -101
-101 ÷ 800 = -0.12625
-0.12625 x 100 = -12.63%