Muzzillo Corporation has provided the following contribution format income statement.All questions concern situations that are within the relevant range. 
Required:
a.If the selling price increases by $4 per unit and the sales volume decreases by 300 units, what would be the estimated net operating income?
b.If the variable cost per unit increases by $6, spending on advertising increases by $3,000, and unit sales increase by 1,800 units, what would be the estimated net operating income?
Definitions:
Fiber-Optic Cable
A type of cable made of glass or plastic fibers that transmit data as light pulses, offering high bandwidth and low signal loss.
EtherNet/IP Protocol
A communications protocol widely used in industrial applications for networking various devices, including PLCs and sensors, over Ethernet.
Control and Information Protocol
A network protocol used in industrial automation to manage and transfer control data and device information.
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