On April 1, the price of gas at Bob’s Corner Station was $3.70 per gallon. On May 1, the price was $4.20 per gallon. On June 1, it was back down to $3.70 per gallon. Between April 1 and May 1, Bob’s price increased by , or . Between May 1 and June 1, Bob’s price decreased by , or . Suppose that at a gas station across the street, prices are always 20% higher than Bob’s. In absolute dollar terms, the difference between Bob’s prices and the prices across the street is when gas costs $4.20 than when gas costs $3.70. Some economists blame high commodity prices (including the price of gas) on interest rates being too low. Suppose the Fed raises the target for the federal funds rate from 2% to 2.5%. This change of percentage points means that the Fed raised its target by approximately .