342.16% is the change from 102 to 451
Calculation steps:
[( 451 - 102 ) ÷ 102] x 100 = 342.16%
Formula
Percentage change = [(451 - 102) / 102] x 100
Subtract the new number by the original number
451 - 102 = 349
349 ÷ 102 = 3.4215686274509802
3.4215686274509802 x 100 = 342.16%