-17.35% is the change from 807 to 667
Calculation steps:
[( 667 - 807 ) ÷ 807] x 100 = -17.35%
Formula
Percentage change = [(667 - 807) / 807] x 100
Subtract the new number by the original number
667 - 807 = -140
-140 ÷ 807 = -0.1734820322180917
-0.1734820322180917 x 100 = -17.35%