-8.61% is the change from 337 to 308
Calculation steps:
[( 308 - 337 ) ÷ 337] x 100 = -8.61%
Formula
Percentage change = [(308 - 337) / 337] x 100
Subtract the new number by the original number
308 - 337 = -29
-29 ÷ 337 = -0.08605341246290801
-0.08605341246290801 x 100 = -8.61%