Add a percentage to a managed security fee: next year's renewal with a price uplift and added users, a GST-inclusive price, or an exchange-rate buffer on a USD-priced service.
This calculator adds to a price rather than taking a fee off it. It computes: increase = amount × percentage + price per added user × number added, then new total = amount + increase + other new charges.
Renewal (default, illustrative): you pay $25,200 a year ex GST for 25 users ($84 per user a month). The provider proposes a 6% uplift, you are adding 3 users at the new price of $89.04 a month ($1,068 a year, rounded) and a new log source costs $2,400 a year. Increase = $25,200 × 6% + 3 × $1,068 = $1,512 + $3,204 = $4,716. New total = $25,200 + $4,716 + $2,400 = $32,316, which is 28.2% more than this year although the headline uplift is only 6%.
GST-inclusive price: enter the ex-GST quote as the amount, 10 as the percentage and 0 for the other fields. A $27,000 quote becomes $29,700 including GST. A GST-registered business can usually claim the GST back as an input tax credit, so budget the ex-GST figure for cost and the GST-inclusive figure for cash flow.
FX buffer: for a USD-priced service, convert at today's rate, then add a buffer (for example 5%) for exchange-rate movement and card fees. See USD pricing, FX and GST and the renewal uplift guide.
Worked costings and choosing a provider
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Worked costings and choosing a provider
Worked examples of how renewal uplifts, added users, expiring first-year discounts and log tiers raise a managed security bill, and how to negotiate caps and notice periods.
Worked costings and choosing a provider
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