-41.13% is the change from 812 to 478
Calculation steps:
[( 478 - 812 ) ÷ 812] x 100 = -41.13%
Formula
Percentage change = [(478 - 812) / 812] x 100
Subtract the new number by the original number
478 - 812 = -334
-334 ÷ 812 = -0.41133004926108374
-0.41133004926108374 x 100 = -41.13%