50% is the change from 16 to 24
Calculation steps:
[( 24 - 16 ) ÷ 16] x 100 = 50%
Formula
Percentage change = [(24 - 16) / 16] x 100
Subtract the new number by the original number
24 - 16 = 8
8 ÷ 16 = 0.5
0.5 x 100 = 50%
Example