Hi Mahesh,
There is one syntax issue in your code:
*FACTOR = (1/12) + 2%
"+ 2%" is a non supported syntax. Use equivalent "* 1.02":
*FACTOR = (1/12) * 1.02
And about %YEAR% - Nilanjan is right, it's better to put year in some variable using DM prompt and then use TMVL(...) to shift by 12 months.
Vadim