-92.93% is the change from 806 to 57
Calculation steps:
[( 57 - 806 ) ÷ 806] x 100 = -92.93%
Formula
Percentage change = [(57 - 806) / 806] x 100
Subtract the new number by the original number
57 - 806 = -749
-749 ÷ 806 = -0.9292803970223326
-0.9292803970223326 x 100 = -92.93%