38.31% is the change from 402 to 556
Calculation steps:
[( 556 - 402 ) ÷ 402] x 100 = 38.31%
Formula
Percentage change = [(556 - 402) / 402] x 100
Subtract the new number by the original number
556 - 402 = 154
154 ÷ 402 = 0.38308457711442784
0.38308457711442784 x 100 = 38.31%