50.75% is the change from 402 to 606
Calculation steps:
[( 606 - 402 ) ÷ 402] x 100 = 50.75%
Formula
Percentage change = [(606 - 402) / 402] x 100
Subtract the new number by the original number
606 - 402 = 204
204 ÷ 402 = 0.5074626865671642
0.5074626865671642 x 100 = 50.75%