Exercise $7-2($Algo$)$ Variable Costing Income Statement; Explanation of Difference in Net Operating Income $[$LO$7-2]$

Ida Company produces a handcrafted musical instrument called a gamelan that is similar to a xylophone. The gamelans are sold for $$990.$ Selected data for the company's operations last year follow:

$\backslash$table$[[$Units in beginning inventory,$0],[$Units produced,$250],[$Units sold,$230],[$Units in ending inventory,$20],[$Variable costs per unit:,$145],[$Direct materials,$$365$