Which most accurately characterizes the method used to calculate inflation? researchers observe the interest rate at two points in time and infer the rate of inflation from the difference. analysts measure the cost of a bundle of goods representative of overall spending at two points in time and compare the difference in cost. economists measure change in the prices of three goods (gasoline, gold, and wheat) thought to be important determinants of the health of the economy. government workers poll households to find out how much change there is in the prices that they are paying. bureaucrats evaluate changes in the price of a nation's currency in terms of other prominent world currencies.