The standard cost card for a product shows that the product should use $4$ kilograms of material B per finished unit and that the standard price of material B is $$4\mathrm{.}50$ per kilogram. During April, when the budgeted production level was $1,000$ units, $1,040$ units were actually made. A total of $4,100$ kilograms of material B were used in production and the inventories of material B were increased by $200$ kilograms during April. The total cost of material B purchased during April was $$20,600.$ What are $(1)$ Material Quantity Variance and $(2)$ Price Variance for material B during April? $($Show me your work!$)$