-42.2% is the change from 827 to 478
Calculation steps:
[( 478 - 827 ) ÷ 827] x 100 = -42.2%
Formula
Percentage change = [(478 - 827) / 827] x 100
Subtract the new number by the original number
478 - 827 = -349
-349 ÷ 827 = -0.42200725513905685
-0.42200725513905685 x 100 = -42.2%