9.38% is the change from 384 to 420
Calculation steps:
[( 420 - 384 ) ÷ 384] x 100 = 9.38%
Formula
Percentage change = [(420 - 384) / 384] x 100
Subtract the new number by the original number
420 - 384 = 36
36 ÷ 384 = 0.09375
0.09375 x 100 = 9.38%
Example