-42.89% is the change from 851 to 486
Calculation steps:
[( 486 - 851 ) ÷ 851] x 100 = -42.89%
Formula
Percentage change = [(486 - 851) / 851] x 100
Subtract the new number by the original number
486 - 851 = -365
-365 ÷ 851 = -0.4289071680376028
-0.4289071680376028 x 100 = -42.89%