If I have a improvement in time with a creation of application (VBA program) to calculate a parameters of an equipment, how can I do an Annual Worth(AW), Present Worth (PW) and Replacement Analysis? what factors should I to take in consideration, if I replace an operation that actually y doing by hand by a computer application.
for example: the worker doing the mathematical operation by hand in 32 seconds, and with the computer application, the operation is doing in 16 seconds with a 50 % of improvement. (theoretic - experimental)/theoretical *100% is the used formula for the 50%
How can I to lead it in $, PW, AW and Replacement Analysis?