2138.1% is the change from 42 to 940
Calculation steps:
[( 940 - 42 ) ÷ 42] x 100 = 2138.1%
Formula
Percentage change = [(940 - 42) / 42] x 100
Subtract the new number by the original number
940 - 42 = 898
898 ÷ 42 = 21.38095238095238
21.38095238095238 x 100 = 2138.1%