improper use of boolean expressions

[shahin_kiyomarsi]

Can someone explain whats wrong with this formula? 

[mhiserZFHXS]

I'm guessing its because it looks like you typed in SF, though it'd be easier to tell if you showed us the error you were getting.

[shahin_kiyomarsi]

the error is improper use of boolean expressions

[ralphdenhaan]

Hi,

I think the error is because the Occupancy is a Text parameter instead of a number/integer. You can add a custom parameter for the Occupancy and then use the formula: 

roundup((Area / 1 m²) / Occupancy_integer)

[ToanDN]

What is the parameter type of Occupancy?