89.47% is the change from 19 to 36
Calculation steps:
[( 36 - 19 ) ÷ 19] x 100 = 89.47%
Formula
Percentage change = [(36 - 19) / 19] x 100
Subtract the new number by the original number
36 - 19 = 17
17 ÷ 19 = 0.8947368421052632
0.8947368421052632 x 100 = 89.47%