-39.95% is the change from 796 to 478
Calculation steps:
[( 478 - 796 ) ÷ 796] x 100 = -39.95%
Formula
Percentage change = [(478 - 796) / 796] x 100
Subtract the new number by the original number
478 - 796 = -318
-318 ÷ 796 = -0.39949748743718594
-0.39949748743718594 x 100 = -39.95%