The phrase "a different calculation" is correct and usable in written English.
You can use it when referring to an alternative method or approach to solving a problem or arriving at a result.
Example: "After reviewing the data, we realized that a different calculation was necessary to achieve accurate results."
Alternatives: "an alternative computation" or "a separate assessment".
The difference in LVEF in goats when compared to a previous study [ 8] may relate to the higher heart rates in this study where increased sympathetic tone can affect the degree of contractility or may relate to a different calculation being used to calculate this.
Republicans have a different calculation.
I submit it is time for a different calculation.
The I.O.C. made a sensible decision and NBC was more aggressive with a different calculation".
Cruz may be no less self-interested, but he made a different calculation.
Legal analysts here said that the decision might have involved a different calculation.
Of course if it hadn't factored in the impact of climate change or the long-term need to change Australia's fossil fuel use in response to it, it would have come up with a very different calculation.
Eastern Orthodox churches use a slightly different calculation based on the Julian rather than the Gregorian calendar (which is 13 days ahead of the former), with the result that the Orthodox Easter celebration usually occurs later than that celebrated by Protestants and Roman Catholics.
A lottery based on matching numbers would have an entirely different calculation, based on the number of balls drawn and the number of total balls to draw from.
Variability in catchment salt export/import ratio (E/I) as a result of different calculation methods for both inputs and outputs creates a wide range in possible E/I for some sites, but trends remain the same.
This paper presents the results of theoretical studies using a number of different calculation tools, these including simple design calculations based on modifying a few current design methods and a commercial finite element package ABAQUS.
