-79.93% is the change from 837 to 168
Calculation steps:
[( 168 - 837 ) ÷ 837] x 100 = -79.93%
Formula
Percentage change = [(168 - 837) / 837] x 100
Subtract the new number by the original number
168 - 837 = -669
-669 ÷ 837 = -0.7992831541218638
-0.7992831541218638 x 100 = -79.93%