442.17% is the change from 83 to 450
Calculation steps:
[( 450 - 83 ) ÷ 83] x 100 = 442.17%
Formula
Percentage change = [(450 - 83) / 83] x 100
Subtract the new number by the original number
450 - 83 = 367
367 ÷ 83 = 4.421686746987952
4.421686746987952 x 100 = 442.17%