-39.75% is the change from 800 to 482
Calculation steps:
[( 482 - 800 ) ÷ 800] x 100 = -39.75%
Formula
Percentage change = [(482 - 800) / 800] x 100
Subtract the new number by the original number
482 - 800 = -318
-318 ÷ 800 = -0.3975
-0.3975 x 100 = -39.75%