345.54% is the change from 101 to 450
Calculation steps:
[( 450 - 101 ) ÷ 101] x 100 = 345.54%
Formula
Percentage change = [(450 - 101) / 101] x 100
Subtract the new number by the original number
450 - 101 = 349
349 ÷ 101 = 3.4554455445544554
3.4554455445544554 x 100 = 345.54%