-77.78% is the change from 837 to 186
Calculation steps:
[( 186 - 837 ) ÷ 837] x 100 = -77.78%
Formula
Percentage change = [(186 - 837) / 837] x 100
Subtract the new number by the original number
186 - 837 = -651
-651 ÷ 837 = -0.7777777777777778
-0.7777777777777778 x 100 = -77.78%