-40.64% is the change from 812 to 482
Calculation steps:
[( 482 - 812 ) ÷ 812] x 100 = -40.64%
Formula
Percentage change = [(482 - 812) / 812] x 100
Subtract the new number by the original number
482 - 812 = -330
-330 ÷ 812 = -0.4064039408866995
-0.4064039408866995 x 100 = -40.64%