-38.62% is the change from 813 to 499
Calculation steps:
[( 499 - 813 ) ÷ 813] x 100 = -38.62%
Formula
Percentage change = [(499 - 813) / 813] x 100
Subtract the new number by the original number
499 - 813 = -314
-314 ÷ 813 = -0.3862238622386224
-0.3862238622386224 x 100 = -38.62%