Compute the inflation-adjusted real return r_real = (1+r_nom)/(1+i) โ 1 from the nominal return and the inflation rate.
่พๅ ฅๅไนๆถ็็ r_nom ไธ้่ดง่จ่็ i๏ผๆฑๅฎ้ ๆถ็็ใ