Respuesta :

Answer:

The percent increase is 50%

Step-by-step explanation:

The question is

Find out the percent increase

we know that

The original amount represent the 100%

so

30 represent 100%

using proportion

Determine  what percentage represent the difference between the end amount and the original amount

so

[tex]\frac{30}{100\%}=\frac{45-30}{x}\\\\x=100(15)/30\\\\x=50\%[/tex]

therefore

The percent increase is 50%