78.89% is the change from 450 to 805
Calculation steps:
[( 805 - 450 ) ÷ 450] x 100 = 78.89%
Formula
Percentage change = [(805 - 450) / 450] x 100
Subtract the new number by the original number
805 - 450 = 355
355 ÷ 450 = 0.7888888888888889
0.7888888888888889 x 100 = 78.89%