Dividend Performance Calculator - with Dividends reinvested

Love your Dividend calculator. However, it would be great if it could have an option for reinvestment of dividends. This would probably need to factor in net amount (actual shares that can be reinvested) although I imagine some users might want to know what it would be like if they did a gross amount. I'm using it to evaluate some ASX options with DRPs. I think it would be a great addition for Navexa and maybe another lead magnet to your site. Thanks!