2071.43% is the change from 42 to 912
Calculation steps:
[( 912 - 42 ) ÷ 42] x 100 = 2071.43%
Formula
Percentage change = [(912 - 42) / 42] x 100
Subtract the new number by the original number
912 - 42 = 870
870 ÷ 42 = 20.714285714285715
20.714285714285715 x 100 = 2071.43%