3957.89% is the change from 19 to 771
Calculation steps:
[( 771 - 19 ) ÷ 19] x 100 = 3957.89%
Formula
Percentage change = [(771 - 19) / 19] x 100
Subtract the new number by the original number
771 - 19 = 752
752 ÷ 19 = 39.578947368421055
39.578947368421055 x 100 = 3957.89%