In an action for commissions on sales of lots, an instruction, after stating the respective claims of the parties, that if the jury find that the arrangement alleged by plaintiff was made and after that arrangement defendant's lots were sold plaintiff is entitled to recover the amount claimed by him as commissions, is proper, there being no question as to the price for which the lots were sold. Ockenfells v. Moeller, 79 Mich. 314, 44 N. W. 790.