-30.77% is the change from 806 to 558
Calculation steps:
[( 558 - 806 ) ÷ 806] x 100 = -30.77%
Formula
Percentage change = [(558 - 806) / 806] x 100
Subtract the new number by the original number
558 - 806 = -248
-248 ÷ 806 = -0.3076923076923077
-0.3076923076923077 x 100 = -30.77%