74.42% is the change from 258 to 450
Calculation steps:
[( 450 - 258 ) ÷ 258] x 100 = 74.42%
Formula
Percentage change = [(450 - 258) / 258] x 100
Subtract the new number by the original number
450 - 258 = 192
192 ÷ 258 = 0.7441860465116279
0.7441860465116279 x 100 = 74.42%