Please show the me solution of this short question! thanks

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During the year, the company is approached by a potential customer to fulfill a one-time-only special order for a product similar to one offered to domestic customers. The company has excess capacity. The following per unit data apply for sales to regular customers:

Variable costs:

Direct materials$130

Direct labour60

Manufacturing support105

Other

costs95

Fixed costs:

Manufacturing support175

Marketing costs65

Total

costs630

Markup (50%)315

Targeted selling price$945

What is the change in operating profits if the one-time-only special order for 1,030 units is accepted for $550 a unit by the company?