-41.42% is the change from 816 to 478
Calculation steps:
[( 478 - 816 ) ÷ 816] x 100 = -41.42%
Formula
Percentage change = [(478 - 816) / 816] x 100
Subtract the new number by the original number
478 - 816 = -338
-338 ÷ 816 = -0.41421568627450983
-0.41421568627450983 x 100 = -41.42%