Answer: I'm not 100% sure what you're asking for, but the full answer to the last question is a .25 increase or a 25% increase.
Explanation:
First, we need to see how much it increases.
We would take 1.50, and minus 1.25 from it to get our first answer of .25.
To get the percentage of increase, we would take our .25, and times it by 100 equaling 25%.