Does the system calculate bonus points incorrectly?

Question

opencart

And why does the system count bonus points incorrectly? (The cost of 1190 points, when clicking on the guarantee, should be added to this amount, however, they are added not to 1190, but to 36, which are given for the purchase).
1190 points:

Should be 1203, not 49:

Options are "+", not "=".