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The ORIG COST calculation for a Termination Customer call is
ORIG COST = CEILING(ORIG RATE * (ORIG BILLED DURATION / 60))* POWER(10, Rounding Digits),1) / POWER(10, Rounding Digits)
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Examples
ORIG COST = CEILING((0.005 * (108 / 60))* POWER(10,4)) / POWER(10,4) = 0.0090
ORIG COST = CEILING((0.003 * (72 / 60))* POWER(10,4)) / POWER(10,4) = 0.0036
ORIG COST = CEILING((0.005 * (18 / 60))* POWER(10,4)) / POWER(10,4) = 0.0015