207.53% is the change from 146 to 449
Calculation steps:
[( 449 - 146 ) ÷ 146] x 100 = 207.53%
Formula
Percentage change = [(449 - 146) / 146] x 100
Subtract the new number by the original number
449 - 146 = 303
303 ÷ 146 = 2.0753424657534247
2.0753424657534247 x 100 = 207.53%