I am trying to figure how to calculate a percentage. If I made 522 dollars one week, then 549 the next week, what is the percentage difference, or increase, that I made. (I know I made $27 more the 2nd week, but how do I figure the percentage increase that I made?) Thanks. 2. Please do not post two threads on the same topic 3. Originally Posted by gccrews I am trying to figure how to calculate a percentage. If I made 522 dollars one week, then 549 the next week, what is the percentage difference, or increase, that I made. (I know I made$27 more the 2nd week, but how do I figure the percentage increase that I made?) Thanks.