-36.07% is the change from 499 to 319
Calculation steps:
[( 319 - 499 ) ÷ 499] x 100 = -36.07%
Formula
Percentage change = [(319 - 499) / 499] x 100
Subtract the new number by the original number
319 - 499 = -180
-180 ÷ 499 = -0.36072144288577157
-0.36072144288577157 x 100 = -36.07%