Which sentence one is more appropriate and grammatically correct?

out of 400 in-ground lights, 360 units were used in the above project. Remaining 40 units were reserved for SLMN project, which we are now short of 10 units because the reservation was 50 units.

We don't have stock of in-ground lights. 90% of stocks were used in the above project and remaining 40 units have been reserved for SLMN project, which we are now short of 10 units because the reservation was 50 units.