July 1 2014, Stamp duty on units sold increases by $0.40 per $200 dutyable value. To change this formula in c9 you need to goto

• Setup
• Other Setup Tables
• Unit Cost Math
• Highlight and modify stamp duty

 

The formula previously would be:

roundup({DutyValue},200)/200*if({isNewUnit},5,8)

It now need to be changed to this to add 0.40 for every $200

roundup({DutyValue},200)/200*if({isNewUnit},5.4,8.4)

Be sure to use the test function before saving changes to confirm you got the changes right.