Here is a video of 10 contact missions for grinding solo. All of these missions pay over $10,050 at 4+ minutes at normal pay outs. The double cash makes them all pay over $20.1k and they all can be done solo. A Deluxo make doing them a breeze. The Business Week DLC is the ideal time to grind contact missions since Rockstar is offering double cash and double rp now through 5/14/18.
You will see that I can do all 10 contact missions and make $217,128 in just under 1 hour while using just one set of armor and one clip of ammo.
That is an average of $54,282 every 15 minutes... this is raw video as streamed, unedited...
This is a PS4 playlist called MartinTop10Jobs http://socialclub.ro...q7Em7N2Y78kpk8w
It contains the following missions:
For those who like to argue you should wait 15+ minutes in every mission... The facts are facts and you CANNOT make more by taking over 15 minutes on each job... as Trash Talk at 15+ minutes in mission, pays the highest and will only pay out $45,720 at double cash ($22,860 at regular pay rates) and takes 16.5 to 17 minutes with loading screens and cut scenes. So doing Trash Talk 4 times at 15+ minutes is just over $182k in OVER one hour... $217k doing 10 missions at 4+ minutes in under one hour including load times IS GREATER than $182k in over an hour... and yes you could just grind trash talk etc at 4+ minutes and make a little more money... but I like some variety to keep it from being too much of a GRIND... lol.