Answer:
The percentage change if I increase $3.00 to $ 4.50 is 50%
Solution:
We have to find the percentage change when I increase $3.00 to $4.50
To calculate the percentage change we use the below given formula

Here $ 3.00 is increased to $4.50.
Hence the initial value is $ 3.00 and the final value is $4.50.
Substituting the initial and final values in the formula we get,



= 50%
Therefore the percentage change from $3.00 to $4.50 is 50%