363.51% is the change from 74 to 343
Calculation steps:
[( 343 - 74 ) ÷ 74] x 100 = 363.51%
Formula
Percentage change = [(343 - 74) / 74] x 100
Subtract the new number by the original number
343 - 74 = 269
269 ÷ 74 = 3.635135135135135
3.635135135135135 x 100 = 363.51%