-31.02% is the change from 851 to 587
Calculation steps:
[( 587 - 851 ) ÷ 851] x 100 = -31.02%
Formula
Percentage change = [(587 - 851) / 851] x 100
Subtract the new number by the original number
587 - 851 = -264
-264 ÷ 851 = -0.3102232667450059
-0.3102232667450059 x 100 = -31.02%