Currently, my application has a box to input any number, but for application purposes I'd like to change that. This number is then used in a calculation. I'd like to dynamically change the number with a '+' and '-' that can then be used in a calculation. I'd also like to set a min and max for the input. I will share the file and detailed instructions once I receive your offer. I have asked a few other freelancers and they were unable to create this.