436.84% is the change from 19 to 102
Calculation steps:
[( 102 - 19 ) ÷ 19] x 100 = 436.84%
Formula
Percentage change = [(102 - 19) / 19] x 100
Subtract the new number by the original number
102 - 19 = 83
83 ÷ 19 = 4.368421052631579
4.368421052631579 x 100 = 436.84%