Need help grouping filtered columns into numeric ranges

apologies, i didn't see the attached pbix file. I tried to use it in my own data but it did not sum up the totals per contractor, and instead shows one total in one range.

each contractor line only shows a value of of one, but there are multiple rows for each contractor. i need it to sum each of the contractors value's and then bucket them into the ranges. do i just use a simple sum equation?