163.16% is the change from 19 to 50
Calculation steps:
[( 50 - 19 ) ÷ 19] x 100 = 163.16%
Formula
Percentage change = [(50 - 19) / 19] x 100
Subtract the new number by the original number
50 - 19 = 31
31 ÷ 19 = 1.631578947368421
1.631578947368421 x 100 = 163.16%