9.64% is the change from 384 to 421
Calculation steps:
[( 421 - 384 ) ÷ 384] x 100 = 9.64%
Formula
Percentage change = [(421 - 384) / 384] x 100
Subtract the new number by the original number
421 - 384 = 37
37 ÷ 384 = 0.09635416666666667
0.09635416666666667 x 100 = 9.64%