-35.35% is the change from 809 to 523
Calculation steps:
[( 523 - 809 ) ÷ 809] x 100 = -35.35%
Formula
Percentage change = [(523 - 809) / 809] x 100
Subtract the new number by the original number
523 - 809 = -286
-286 ÷ 809 = -0.3535228677379481
-0.3535228677379481 x 100 = -35.35%