-61.76% is the change from 808 to 309
Calculation steps:
[( 309 - 808 ) ÷ 808] x 100 = -61.76%
Formula
Percentage change = [(309 - 808) / 808] x 100
Subtract the new number by the original number
309 - 808 = -499
-499 ÷ 808 = -0.6175742574257426
-0.6175742574257426 x 100 = -61.76%