-37.82% is the change from 513 to 319
Calculation steps:
[( 319 - 513 ) ÷ 513] x 100 = -37.82%
Formula
Percentage change = [(319 - 513) / 513] x 100
Subtract the new number by the original number
319 - 513 = -194
-194 ÷ 513 = -0.37816764132553604
-0.37816764132553604 x 100 = -37.82%