3531.58% is the change from 19 to 690
Calculation steps:
[( 690 - 19 ) ÷ 19] x 100 = 3531.58%
Formula
Percentage change = [(690 - 19) / 19] x 100
Subtract the new number by the original number
690 - 19 = 671
671 ÷ 19 = 35.31578947368421
35.31578947368421 x 100 = 3531.58%