-40.53% is the change from 987 to 587
Calculation steps:
[( 587 - 987 ) ÷ 987] x 100 = -40.53%
Formula
Percentage change = [(587 - 987) / 987] x 100
Subtract the new number by the original number
587 - 987 = -400
-400 ÷ 987 = -0.40526849037487334
-0.40526849037487334 x 100 = -40.53%