Hi pls can you tell me the most economical way to travel from Yiwu to Binzhou City?

From Yiwu, you can take a train to reach Jinan first and from Jinan Long Distance Bus Station, you can find frequent buses to reach Binzhou directly.
The train from Yiwu to Jinan takes about 16 to 18 hours and the detail information can be found in the Train Section on this website. The buses from Jinan to Binzhou takes about two hours and a half.