The phrase "calculation to make" is correct and usable in written English.
You could use it when describing the process of making a calculation. For example, "I must make a calculation to determine how much paint I need to buy for the project".
Mr Fabius has a tricky calculation to make.
"It's a difficult calculation to make and highlights the difficult positions that content platforms are sometimes put in".
And so, if many Trump voters didn't really believe they'd lose protections under President Trump, this was not a crazy calculation to make.
Still, I thought this was an interesting calculation to make — which may show more about my warped sense of what's interesting than it does about anything else.
But that's a difficult calculation to make as it depends on how much of your total debt the firm manages to persuade your creditors to write off.
But if you burn the bridge so that you cannot retreat, and in sheer desperation there is nothing you can do but defend yourself, he has a new calculation to make.
While some Republicans were certain to oppose Mr. Bernanke, the minority leadership had its own strategic calculations to make.
Along with everyone else at the regatta they had been triple-checking the points' calculations to make sure they were correct.
New for 2019, acceptance rate (1.25percentt in last year's ranking) has been completely removed from the ranking calculations to make room for the new social mobility indicators.
"We need to very thoroughly deal with those dents which we see on the submarine to make thorough calculations to make sure what it was" that caused them, Deputy Prime Minister Ilya Klebanov said in remarks shown on Russian television.
