-46.2% is the change from 816 to 439
Calculation steps:
[( 439 - 816 ) ÷ 816] x 100 = -46.2%
Formula
Percentage change = [(439 - 816) / 816] x 100
Subtract the new number by the original number
439 - 816 = -377
-377 ÷ 816 = -0.46200980392156865
-0.46200980392156865 x 100 = -46.2%