This is the answer, I hope what I did makes sense! Normally it would help to put the numbers from least to greatest but I skipped that step. If you have any questions comment them and I will answer! Hope this helps!
The answer is to put the data from least to greatest. You can’t do anything with the data until you put it from least to greatest. (I am 98% sure that is correct)
$310 dollars because after it res and decreased it gained $.10 and 100 x 3 is 300 so thats before you calculate how much it rose so .10 x 100 is 10 so add that to 300 and you get 310