How do you program tax button 487nx royal cash register?

To program the tax button on a Royal Cash Register model 487NX, first, turn the register to the programming mode by pressing the "Mode" button. Then, access the tax settings by entering the appropriate programming code, typically found in the user manual. Input the tax rate percentage you wish to set and assign it to the desired tax button. Finally, save your settings and return to the normal operating mode. Always refer to the specific manual for detailed instructions tailored to your model.