950% is the change from 42 to 441
Calculation steps:
[( 441 - 42 ) ÷ 42] x 100 = 950%
Formula
Percentage change = [(441 - 42) / 42] x 100
Subtract the new number by the original number
441 - 42 = 399
399 ÷ 42 = 9.5
9.5 x 100 = 950%
Example