-63.04% is the change from 809 to 299
Calculation steps:
[( 299 - 809 ) ÷ 809] x 100 = -63.04%
Formula
Percentage change = [(299 - 809) / 809] x 100
Subtract the new number by the original number
299 - 809 = -510
-510 ÷ 809 = -0.630407911001236
-0.630407911001236 x 100 = -63.04%