-47.89% is the change from 806 to 420
Calculation steps:
[( 420 - 806 ) ÷ 806] x 100 = -47.89%
Formula
Percentage change = [(420 - 806) / 806] x 100
Subtract the new number by the original number
420 - 806 = -386
-386 ÷ 806 = -0.47890818858560796
-0.47890818858560796 x 100 = -47.89%