-51.24% is the change from 806 to 393
Calculation steps:
[( 393 - 806 ) ÷ 806] x 100 = -51.24%
Formula
Percentage change = [(393 - 806) / 806] x 100
Subtract the new number by the original number
393 - 806 = -413
-413 ÷ 806 = -0.5124069478908189
-0.5124069478908189 x 100 = -51.24%