Learning how to handle these 1099-B's, I received the detail transaction report that shows the cost or basis, however on the actual 1099-b the column 1e shows a lower amount of cost and basis. Why is that?

Example line 1 shows on the detail the totaling of $4520.49 as proceeds, with the cost of $1579.50; (gain $2940.99); (Do I do anything with the $661.50 ordinary?)

however on the  1099-B states $4520.49 as Cost and Basis as $918.00?

Why also they reporting $4550.40? is that the difference of proceeds and reporting the sale expense of $29.91? Why the Basis was $1579.50 down to $918?