621.43% is the change from 42 to 303
Calculation steps:
[( 303 - 42 ) ÷ 42] x 100 = 621.43%
Formula
Percentage change = [(303 - 42) / 42] x 100
Subtract the new number by the original number
303 - 42 = 261
261 ÷ 42 = 6.214285714285714
6.214285714285714 x 100 = 621.43%