Mg/l to percentage help.

Haze Man

Member
Hi everyone, iv been looking for someone to help me to convert an NPK from Mg/l to percentage ,
i bought a growing medium i didnt checked it in the store, the reading show that it has a

50-300 mg/l N
80-300 mg/l P
80-400 mg/l K

Anyone can assist me what dose that mean in percentage?

My regards.
 
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