-31.49% is the change from 851 to 583
Calculation steps:
[( 583 - 851 ) ÷ 851] x 100 = -31.49%
Formula
Percentage change = [(583 - 851) / 851] x 100
Subtract the new number by the original number
583 - 851 = -268
-268 ÷ 851 = -0.31492361927144535
-0.31492361927144535 x 100 = -31.49%