-41.92% is the change from 823 to 478
Calculation steps:
[( 478 - 823 ) ÷ 823] x 100 = -41.92%
Formula
Percentage change = [(478 - 823) / 823] x 100
Subtract the new number by the original number
478 - 823 = -345
-345 ÷ 823 = -0.41919805589307413
-0.41919805589307413 x 100 = -41.92%