Answer and Explanation:
Since the inflation is lesser than the nominal rate, the real rate has been positive.
Purchasing power increased by the real rate of interest
As per Fisher Equation
(1 + Real rate) = (1 + Nominal rate)/(1 + Inflation)
= (1.04/1.03)
= 1.009701
Real rate = 0.009701
= 0.97%
Purchasing power increased by 0.97%