solution please.

4. Your company has had a 500 000 contract for renewing ten (10) TR4 - locomotives. Now you are negotiating a new contract for renewing another 20 locomotives. You have asked the contractor to send you the following cost/unit structure of their renewing project Material cost 4000 Material additional cost 25 % Work cost 20000 Work additional cost 50 % Overhead expenses 10000 Net profit percentage 10 % Calculate a total price for your new offer by using the same 75 % experience curve as you did with the first contract