-15.86% is the change from 807 to 679
Calculation steps:
[( 679 - 807 ) ÷ 807] x 100 = -15.86%
Formula
Percentage change = [(679 - 807) / 807] x 100
Subtract the new number by the original number
679 - 807 = -128
-128 ÷ 807 = -0.15861214374225527
-0.15861214374225527 x 100 = -15.86%