-18.88% is the change from 837 to 679
Calculation steps:
[( 679 - 837 ) ÷ 837] x 100 = -18.88%
Formula
Percentage change = [(679 - 837) / 837] x 100
Subtract the new number by the original number
679 - 837 = -158
-158 ÷ 837 = -0.18876941457586618
-0.18876941457586618 x 100 = -18.88%