-36.52% is the change from 805 to 511
Calculation steps:
[( 511 - 805 ) ÷ 805] x 100 = -36.52%
Formula
Percentage change = [(511 - 805) / 805] x 100
Subtract the new number by the original number
511 - 805 = -294
-294 ÷ 805 = -0.3652173913043478
-0.3652173913043478 x 100 = -36.52%