1728.57% is the change from 42 to 768
Calculation steps:
[( 768 - 42 ) ÷ 42] x 100 = 1728.57%
Formula
Percentage change = [(768 - 42) / 42] x 100
Subtract the new number by the original number
768 - 42 = 726
726 ÷ 42 = 17.285714285714285
17.285714285714285 x 100 = 1728.57%