53.33% is the change from 450 to 690
Calculation steps:
[( 690 - 450 ) ÷ 450] x 100 = 53.33%
Formula
Percentage change = [(690 - 450) / 450] x 100
Subtract the new number by the original number
690 - 450 = 240
240 ÷ 450 = 0.5333333333333333
0.5333333333333333 x 100 = 53.33%