-34.49% is the change from 806 to 528
Calculation steps:
[( 528 - 806 ) ÷ 806] x 100 = -34.49%
Formula
Percentage change = [(528 - 806) / 806] x 100
Subtract the new number by the original number
528 - 806 = -278
-278 ÷ 806 = -0.34491315136476425
-0.34491315136476425 x 100 = -34.49%