-36.6% is the change from 806 to 511
Calculation steps:
[( 511 - 806 ) ÷ 806] x 100 = -36.6%
Formula
Percentage change = [(511 - 806) / 806] x 100
Subtract the new number by the original number
511 - 806 = -295
-295 ÷ 806 = -0.36600496277915634
-0.36600496277915634 x 100 = -36.6%