-45.87% is the change from 811 to 439
Calculation steps:
[( 439 - 811 ) ÷ 811] x 100 = -45.87%
Formula
Percentage change = [(439 - 811) / 811] x 100
Subtract the new number by the original number
439 - 811 = -372
-372 ÷ 811 = -0.45869297163995065
-0.45869297163995065 x 100 = -45.87%