2050% is the change from 42 to 903
Calculation steps:
[( 903 - 42 ) ÷ 42] x 100 = 2050%
Formula
Percentage change = [(903 - 42) / 42] x 100
Subtract the new number by the original number
903 - 42 = 861
861 ÷ 42 = 20.5
20.5 x 100 = 2050%
Example