-62.92% is the change from 809 to 300
Calculation steps:
[( 300 - 809 ) ÷ 809] x 100 = -62.92%
Formula
Percentage change = [(300 - 809) / 809] x 100
Subtract the new number by the original number
300 - 809 = -509
-509 ÷ 809 = -0.6291718170580964
-0.6291718170580964 x 100 = -62.92%