Solve without using Excel, X = 12345 , and show all equations used

Q1- [15 marks] Let X be the least five significant digits in your student ID. For example, if your student ID is S00012345, then X = 12345. Use the value of X obtained based on your student ID in the problem below. The ABC company has fixed costs of $600,000 per month and variable costs of $900 per customer account. The company currently charges $X per month for each account. It wants to raise the monthly fee by 10% to cover enhanced features such as a new web interface and a newly acquired database, which increases the variable cost by 7%. What is the breakeven point in number of accounts