19.33% is the change from 450 to 537
Calculation steps:
[( 537 - 450 ) ÷ 450] x 100 = 19.33%
Formula
Percentage change = [(537 - 450) / 450] x 100
Subtract the new number by the original number
537 - 450 = 87
87 ÷ 450 = 0.19333333333333333
0.19333333333333333 x 100 = 19.33%