24.63% is the change from 337 to 420
Calculation steps:
[( 420 - 337 ) ÷ 337] x 100 = 24.63%
Formula
Percentage change = [(420 - 337) / 337] x 100
Subtract the new number by the original number
420 - 337 = 83
83 ÷ 337 = 0.24629080118694363
0.24629080118694363 x 100 = 24.63%