I had tried to use IPMT to find interest earned in each of the quarters for a
given future value, but the sum of all interests earned (IPMT) for all the
quarters is not equal to Sum of PPMT minus Total PMT.
Example,
FV 5000
rate 2.50%
Years 1
IPMT PPMT pmt
1 $0.00 $1,238.34 $1,230.65
2 $7.74 $1,246.08 $1,230.65
3 $15.53 $1,253.87 $1,230.65
4 $23.36 $1,261.71 $1,230.65
Sum: $46.63 $5,000.00 $4,922.60
$5000.00 - $4922.60= $77.40
Sum of IPMT should have been $77.40.
There is difference of $77.40 - $ 46.63 = $30.77
Why? Did I wrong somewhere?