1538.1% is the change from 42 to 688
Calculation steps:
[( 688 - 42 ) ÷ 42] x 100 = 1538.1%
Formula
Percentage change = [(688 - 42) / 42] x 100
Subtract the new number by the original number
688 - 42 = 646
646 ÷ 42 = 15.380952380952381
15.380952380952381 x 100 = 1538.1%