Calculating Net Profit from Sales Data

A statistical analysis of a retail company’s sales data from the previous year revealed the following information:

- The company’s sales figures for each quarter were as follows:

• Q1: $250,000
• Q2: $350,000
• Q3: $450,000
• Q4: $550,000

Additionally, for the same period, the company experienced variable operational costs represented as a percentage of total sales, categorized as follows:

• Q1: 10%
• Q2: 8%
• Q3: 6%
• Q4: 5%

Given this data, what was the company's net profit for the year?