-93.67% is the change from 806 to 51
Calculation steps:
[( 51 - 806 ) ÷ 806] x 100 = -93.67%
Formula
Percentage change = [(51 - 806) / 806] x 100
Subtract the new number by the original number
51 - 806 = -755
-755 ÷ 806 = -0.9367245657568238
-0.9367245657568238 x 100 = -93.67%