-65.76% is the change from 809 to 277
Calculation steps:
[( 277 - 809 ) ÷ 809] x 100 = -65.76%
Formula
Percentage change = [(277 - 809) / 809] x 100
Subtract the new number by the original number
277 - 809 = -532
-532 ÷ 809 = -0.657601977750309
-0.657601977750309 x 100 = -65.76%