Quoted By:
Total growth is (7312-6350)/6350, or the difference between the current total and last year's total relative to last year's total. A year's total is also the sum of each of its components, so you can get contribution to growth of a particular component by taking the price difference of a particular good and dividing it by last year's total. For example (280-140)/6350. That's another way of getting the same answer as the other anon suggested. I know this is just macro 101 but you should pay more attention and not just be going through the motions.
