A script with an UI to calculate how we should cut tuna slices

Hello everyone, we have this issue in company where we receive tuna slices in different sizes: 0.15 0.16 0.17 0.18 0.19 0.20 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 We need to cut them in max 2 smaller pieces if needed and combine them to get a x value in a packaging (let's say 0.43) Maximum x slices in one package (let's say 3) We want to select how many pieces of each size we get and let the program find the best way of combining them. An easy example, let's say we get: 1 x 0.20 1 x 0.23 1 x 0.26 1 x 0.27 And if we wanted 3 pieces and 0.43 total it would combine to give: Combination: 1 x (0.2 +0.23) 1 x (0.27 + 0.26) Cutting: 1 x 0.27 ---> 0.17 + 0.10 Error: Left over: this should be as low as possible... ideally zero 1 x 0.1 Please bid if you can make a program/script like this....