How to past value from class to first Form and Second Form

I make class for Math & Collection item data logger. Some of data from this class must be display at first form. others will make path record in second form.

 

Two line script of this below are Class script.

SSI_j = Convert.ToUInt16(SSI_a.ToString()); // SSI_j is data will display in First Form and item data logger.
SSI_k = Convert.ToUInt16(SSI_b.ToString()); // SSI_j is data will display in First Form and item data logger. 

 

I look class script show data data from SSI-j and SSI_k. but data doesn't show in  the first and second form.

 

 Please any body can halp me to be may good solution. thank you