38% is the change from 50 to 69
Calculation steps:
[( 69 - 50 ) ÷ 50] x 100 = 38%
Formula
Percentage change = [(69 - 50) / 50] x 100
Subtract the new number by the original number
69 - 50 = 19
19 ÷ 50 = 0.38
0.38 x 100 = 38%
Example