help with formula

[Guest]

hey, i am trying to make a spreadsheet for work and i need some help

what it is for is working out orienteering scores based on time, for example
if the fastest time was 27mins they would score 50 points and then the points
would go down as the times went up

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[Guest]

What are the rules for the allocation of points: if my time was 30 mins vs
fastest of 27mins, how many points would I get?

 

[Guest]

=50-(A1-27)

 

[JE McGimpsey]

One way, though you don't really give very much information:

=50 - x * MAX(0,A1 - TIME(0,27,0))

where x is a factor that determines how fast points are lost.