-36.95% is the change from 931 to 587
Calculation steps:
[( 587 - 931 ) ÷ 931] x 100 = -36.95%
Formula
Percentage change = [(587 - 931) / 931] x 100
Subtract the new number by the original number
587 - 931 = -344
-344 ÷ 931 = -0.3694951664876477
-0.3694951664876477 x 100 = -36.95%