-57.57% is the change from 806 to 342
Calculation steps:
[( 342 - 806 ) ÷ 806] x 100 = -57.57%
Formula
Percentage change = [(342 - 806) / 806] x 100
Subtract the new number by the original number
342 - 806 = -464
-464 ÷ 806 = -0.575682382133995
-0.575682382133995 x 100 = -57.57%