-41.95% is the change from 820 to 476
Calculation steps:
[( 476 - 820 ) ÷ 820] x 100 = -41.95%
Formula
Percentage change = [(476 - 820) / 820] x 100
Subtract the new number by the original number
476 - 820 = -344
-344 ÷ 820 = -0.4195121951219512
-0.4195121951219512 x 100 = -41.95%