John Davidson

ID	payroll_cat_name	payroll_cat_code	category_type	amount
1	Provident Fund	PF	dedution	1000
2	Basic Pay	BC	earning	35000
3	Travelling	TA	earning	6500
4	Home Allowance	HM	earning	12000
5	Tax	TX	dedution	500

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My Answer:
To calculate the value of the checked box, you can use JavaScript to loop through all the checkboxes and calculate the total amount based on the checked checkboxes.

Here is an example code snippet to achieve this:

html

ID	payroll_cat_name	payroll_cat_code	category_type	amount	Check
1	Provident Fund	PF	dedution	1000
2	Basic Pay	BC	earning	35000
3	Travelling	TA	earning	6500
4	Home Allowance	HM	earning	12000
5	Tax	TX	dedution	500

Calculate Total

Total Amount: 0

In this code snippet, we have created a table with checkboxes for each row. When the "Calculate Total" button is clicked, the `calculateTotal` function is called which loops through all the checkboxes and adds up the values of the checked checkboxes to calculate the total amount. The total amount is then displayed in the `` element with the id "totalAmount".