-71.63% is the change from 987 to 280
Calculation steps:
[( 280 - 987 ) ÷ 987] x 100 = -71.63%
Formula
Percentage change = [(280 - 987) / 987] x 100
Subtract the new number by the original number
280 - 987 = -707
-707 ÷ 987 = -0.7163120567375887
-0.7163120567375887 x 100 = -71.63%