62.66% is the change from 399 to 649
Calculation steps:
[( 649 - 399 ) ÷ 399] x 100 = 62.66%
Formula
Percentage change = [(649 - 399) / 399] x 100
Subtract the new number by the original number
649 - 399 = 250
250 ÷ 399 = 0.6265664160401002
0.6265664160401002 x 100 = 62.66%