Dr. puegan also treated 440 dogs the precentageobese doge increased from 52.5% in 2010 to 55.0% in 2011 what was the precent increase

Since there are two number and they want you to find the increase,

you just sutract the 1st number from the 2nd number and get the increase

so - 52.5+55.0=2.5

so let's say they wanted to find the increase from 1 to 3

you would subtract 1 from 3 which would give you 2