Vout = Vs*(0.009*P - 0.095)
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Decimals can be easy to work with by just scaling up and then dividing down. For 3 decimal places, multiply times 1000.

Now the formula looks like this.

Vout = 5 * (9 * P - 95) ' result is * 1000


So, for 1 atmosphere ~ 101 kPa

5 * (9 * 101 - 95) = 4070

4.070 Vdc


HTH,
Darrel Taylor