-8.01% is the change from 337 to 310
Calculation steps:
[( 310 - 337 ) ÷ 337] x 100 = -8.01%
Formula
Percentage change = [(310 - 337) / 337] x 100
Subtract the new number by the original number
310 - 337 = -27
-27 ÷ 337 = -0.08011869436201781
-0.08011869436201781 x 100 = -8.01%