-21.75% is the change from 800 to 626
Calculation steps:
[( 626 - 800 ) ÷ 800] x 100 = -21.75%
Formula
Percentage change = [(626 - 800) / 800] x 100
Subtract the new number by the original number
626 - 800 = -174
-174 ÷ 800 = -0.2175
-0.2175 x 100 = -21.75%