If NGDP Is Nominal GDP and RGDP Is Real GDP

Multiple Choice

If NGDP is nominal GDP and RGDP is real GDP, which of the following can be used to calculate inflation?

A) percent change in NGDP + percent change in RGDP
B) percent change in NGDP - percent change in RGDP
C) percent change in NGDP ｴ percent change in RGDP
D) percent change in RGDP + percent change in NGDP
E) percent change in RGDP -percent change in NGDP