The last time I asked OCS, it's like this.  I use 1 example, HTC Legend, RRP RM1999, they sell for RM999 with 2 years contract.  If terminate with 4 months left in the contract, the penalty is RM266.67.  Put your own figures in bold to calculate your scenario.  Or give us the details and we calculate for you.

DIGI SMART PLAN PENALTY CALCULATION
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RRP (Market Price) X RM 1,999.00
Special Price Y RM 999.00
P Savings (X - Y) Z RM 1,000.00
End Contract Date 5/9/2012
End Contract Date - Today (months) W 4
End contract date – start contract date (tenure) V 24
Administrative Fee S RM 100.00

Formula (W/V x Z)
Calculation 4/24 x 1000
Result RM 166.67
Administrative Fee + RM 100.00
Final Penalty Fee RM 266.67
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