Firm XYZ makes three products, M1, M2 and B, in a joint setting. The NRV of the three products at the split-off point are $1,500, $2,500 and $250, respectively. In the current period, the firm incurs joint costs of $3,200 and sells $200 of product B. What is the joint cost allocated to product M1, under the NRV method, if product B is a byproduct accounted for under the sales method?