-41.21% is the change from 813 to 478
Calculation steps:
[( 478 - 813 ) ÷ 813] x 100 = -41.21%
Formula
Percentage change = [(478 - 813) / 813] x 100
Subtract the new number by the original number
478 - 813 = -335
-335 ÷ 813 = -0.41205412054120544
-0.41205412054120544 x 100 = -41.21%