How to add the desired number to the value of the slider?

Question

JavaScript

There are two sliders. It is necessary to display the summed value of the slider in two places in the information under the button.
Given:
x = slider value
y = x+1
Output text: Return from (y) ₴ to (y+169) ₴ including all commissions and overpayments.*
Below is the slider code. Can you tell me how to modify it to get the desired result?

Answer 1

pass value sumSpan summSpan via onchange