-30.7% is the change from 847 to 587
Calculation steps:
[( 587 - 847 ) ÷ 847] x 100 = -30.7%
Formula
Percentage change = [(587 - 847) / 847] x 100
Subtract the new number by the original number
587 - 847 = -260
-260 ÷ 847 = -0.3069657615112161
-0.3069657615112161 x 100 = -30.7%