Delphi Calculation Program Rebuild

The task is to reverse-engineer an existing Windows application written in Delphi, understand every formula it applies, and produce a brand-new build that replicates the behaviour one-to-one. I can run... (Budget: ₹150000 - ₹250000 INR, Jobs: C Programming, C# Programming, C++ Programming, Debugging, Delphi, Reverse Engineering, Software Development, x86/x64 Assembler)