Equation for Flow conversion in DCS

can someone help me the flow calculate from % in m3/h

In field we are using a Level control valve. The Valve range is from 0-11.9 m3/h. The signal from Radar level transmitter is coming in % .

In DCS we need to shown in m3. The range in DCS is from 0-11.9 m3/h.

How can i convert this?