Question

Original amount: 30
End amount: 45
what is the percent change

Answer 1

50%

Explanation:

Change = 45 - 30 = 15

`percent \: change = (15)/(30) * 100 \\ \hspace{76 pt} = (1)/(2) * 100 \\ \hspace{76 pt} = 50\% \\`

Answer 2

Answer: p=50%

Explanation:

45-30=15

p% of 30=15, p*30/100=15, p=15*100/30=50

Answer p=50%