What does it mean by to calculate the change in real income, compare the inflation rate with the change in Ann's nominal income?

The given information is:

The first table below shows the basket of the goods Ann consumes over four time periods, TI to T4. The second table shows Ann's income over the same periods. Assume that Ann consumes the same amount of each good in all time periods. Use the tables to answer the following questions. Goods Quantity Price Price Price Price Time Income Consumed T1 T2 T3 T4 T1 $5,000 Eggs 300 (Dozen) $3.50 $4.00 $5.20 $5.00 T2 $5,200 T3 $5,870 Bread 60 $4.50 $5.00 $6.00 $5.40 T4 $5,810 Loaves) Cheese 40 (Blocks) $6.00 $6.50 $7.40 $6.40 Gas 500 (Gallons) $3.50 $3.40 $4.00 $3.90 DVD's 70 (Units) |$11 $10 $8.50 $8.50 a. What was the percentage inflation rate facing Ann for this basket of goods in each of the following time periods? Please give your answer to the nearest whole percentage. TI to T2: 2 % T2 to T3: 16 % T3 to T4: -4 b. What was the percentage change in Ann's real income for the above basket of goods, in each of the following time periods? Please give your answer to the nearest whole percentage. T1 to T2: 2 % T2 to T3: 2 %