8% is the change from 450 to 486
Calculation steps:
[( 486 - 450 ) ÷ 450] x 100 = 8%
Formula
Percentage change = [(486 - 450) / 450] x 100
Subtract the new number by the original number
486 - 450 = 36
36 ÷ 450 = 0.08
0.08 x 100 = 8%
Example