Use decision field to trigger add records workflow

Use decision field to trigger add records workflow

I would very much appreciate help with the following:

I have two forms: Inscripci_n and Movimientos.

In the form Inscripci_n there is a decision field (Julio 2018). Whenever this field is ticked I want this action to trigger an "add record" type workflow with the following info: Cant_Cargo in Movimientos has to equal Cuota_mensual in Inscripci_n and Conc_cargo in Movimientos has to show "Julio 18".

This is the script I've come up with so far:

if ( Julio_2018 == True ) ;
{ insert into Movimientos
[
Cant_Cargo = Cuota_mensual
Conc_cargo = "Julio 18"
]
};

Am I too far off? ...

Thanks in advance for the help!