449.21% is the change from 63 to 346
Calculation steps:
[( 346 - 63 ) ÷ 63] x 100 = 449.21%
Formula
Percentage change = [(346 - 63) / 63] x 100
Subtract the new number by the original number
346 - 63 = 283
283 ÷ 63 = 4.492063492063492
4.492063492063492 x 100 = 449.21%