-71.6% is the change from 986 to 280
Calculation steps:
[( 280 - 986 ) ÷ 986] x 100 = -71.6%
Formula
Percentage change = [(280 - 986) / 986] x 100
Subtract the new number by the original number
280 - 986 = -706
-706 ÷ 986 = -0.716024340770791
-0.716024340770791 x 100 = -71.6%