55.33% is the change from 450 to 699
Calculation steps:
[( 699 - 450 ) ÷ 450] x 100 = 55.33%
Formula
Percentage change = [(699 - 450) / 450] x 100
Subtract the new number by the original number
699 - 450 = 249
249 ÷ 450 = 0.5533333333333333
0.5533333333333333 x 100 = 55.33%