-52.29% is the change from 851 to 406
Calculation steps:
[( 406 - 851 ) ÷ 851] x 100 = -52.29%
Formula
Percentage change = [(406 - 851) / 851] x 100
Subtract the new number by the original number
406 - 851 = -445
-445 ÷ 851 = -0.5229142185663925
-0.5229142185663925 x 100 = -52.29%