-38.7% is the change from 814 to 499
Calculation steps:
[( 499 - 814 ) ÷ 814] x 100 = -38.7%
Formula
Percentage change = [(499 - 814) / 814] x 100
Subtract the new number by the original number
499 - 814 = -315
-315 ÷ 814 = -0.386977886977887
-0.386977886977887 x 100 = -38.7%