-5.93% is the change from 337 to 317
Calculation steps:
[( 317 - 337 ) ÷ 337] x 100 = -5.93%
Formula
Percentage change = [(317 - 337) / 337] x 100
Subtract the new number by the original number
317 - 337 = -20
-20 ÷ 337 = -0.05934718100890208
-0.05934718100890208 x 100 = -5.93%