49.5% is the change from 402 to 601
Calculation steps:
[( 601 - 402 ) ÷ 402] x 100 = 49.5%
Formula
Percentage change = [(601 - 402) / 402] x 100
Subtract the new number by the original number
601 - 402 = 199
199 ÷ 402 = 0.49502487562189057
0.49502487562189057 x 100 = 49.5%