99.33% is the change from 450 to 897
Calculation steps:
[( 897 - 450 ) ÷ 450] x 100 = 99.33%
Formula
Percentage change = [(897 - 450) / 450] x 100
Subtract the new number by the original number
897 - 450 = 447
447 ÷ 450 = 0.9933333333333333
0.9933333333333333 x 100 = 99.33%