6.47% is the change from 402 to 428
Calculation steps:
[( 428 - 402 ) ÷ 402] x 100 = 6.47%
Formula
Percentage change = [(428 - 402) / 402] x 100
Subtract the new number by the original number
428 - 402 = 26
26 ÷ 402 = 0.06467661691542288
0.06467661691542288 x 100 = 6.47%