123.88% is the change from 201 to 450
Calculation steps:
[( 450 - 201 ) ÷ 201] x 100 = 123.88%
Formula
Percentage change = [(450 - 201) / 201] x 100
Subtract the new number by the original number
450 - 201 = 249
249 ÷ 201 = 1.2388059701492538
1.2388059701492538 x 100 = 123.88%