1530.95% is the change from 42 to 685
Calculation steps:
[( 685 - 42 ) ÷ 42] x 100 = 1530.95%
Formula
Percentage change = [(685 - 42) / 42] x 100
Subtract the new number by the original number
685 - 42 = 643
643 ÷ 42 = 15.30952380952381
15.30952380952381 x 100 = 1530.95%