P is the currency which just stands for points.
I need an equation to transfer old points to new points. If I were to input 150 (X = Old) I would get 250 (Y = New) out. This needs to continue for any value excluding negatives (Unless it comes with the equation then it is okay of course)


Two Tables:


Old:
50P (33% of normal) = 0.000825
100P (66% of normal) = 0.00165
150P (Normal 100%) = 0.0025
200P (133% of normal) = 0.003325
250P (166% of normal) = 0.00415


New:
80P (33% of normal) = 0.000825
170P (66% of normal) = 0.00165
250P (Normal 100%) = 0.0025
335P (133% of normal) = 0.003325
415P (166% of normal) = 0.00415


I can provide for information if needed c: