-61.93% is the change from 809 to 308
Calculation steps:
[( 308 - 809 ) ÷ 809] x 100 = -61.93%
Formula
Percentage change = [(308 - 809) / 809] x 100
Subtract the new number by the original number
308 - 809 = -501
-501 ÷ 809 = -0.619283065512979
-0.619283065512979 x 100 = -61.93%