-3.86% is the change from 337 to 324
Calculation steps:
[( 324 - 337 ) ÷ 337] x 100 = -3.86%
Formula
Percentage change = [(324 - 337) / 337] x 100
Subtract the new number by the original number
324 - 337 = -13
-13 ÷ 337 = -0.03857566765578635
-0.03857566765578635 x 100 = -3.86%