PV = 1000 N 10 years

R = (1st 5 yrs) = 6.5% annual compounding

R = (last 5 yrs) = 6.5% monthly compounding

N = 5 N = 60

I/Y = 6.5 I/Y = .54167

PV = 1000 PV = 1370.09

PMT = 0 PMT = 0

FV = 1370.09 FV = 1894.58

TI = FV - PV TI1 = 1370.09 - 1000 = 370.90

= 1894.58 - 1000 TI2 = 1894.58 - 1370.09 = 524.99

= 894.58

SI1 = 1000 x .065 x 5 = 325

SI2 =1000 x .065 x 5 = 325

SI = 325 + 325 = 650

IFC = TI - SI IFC1 = 370.09 - 325.00 = 45.09

= 894.58 - 650.00 IFC2 = 524.49 - 325.00 = 199.49

= 244.58

(244.58 = 45.09 + 199.49)

(199.49 = 141.68 + 57.82)

The 199.49 is also broken down into two (141.68 + 57.82). I have the answer, I need to know the steps on how he came up with that answer.