3478.95% is the change from 19 to 680
Calculation steps:
[( 680 - 19 ) ÷ 19] x 100 = 3478.95%
Formula
Percentage change = [(680 - 19) / 19] x 100
Subtract the new number by the original number
680 - 19 = 661
661 ÷ 19 = 34.78947368421053
34.78947368421053 x 100 = 3478.95%