Advanced enterprises should increase the selling price because it will have greater Operating Income.
The sales volume will decrease to 145,827.5 (160,250 x (1 - 0.09)) because of increase in price to $6.92 ((968,000/160,250) x 1.1450). Since Cost of Goods Sold is variable at $4 per unit, Gross Margin is $2.92 per unit.
Operating Income is then computed as follows:
Gross Margin (145,827.5 × $2.92) $425,816.30
Less: Operating Expenses 263,000
Operating Income 162,816.30
Thus, it is recommended that Advanced Enterprise increase their selling price because it will yield higher Operating Income.