Strategies

Part 1: lvl 1-11 This part will take 5 day to 2 weeks depending on how much you play

for lvls 1-3: I recommend selling at 115%+ to make lvl 4 easier if you hit a wall use stock market to overcome it. for lvl 4: this is perhaps the longest lvl in the game and i recommend selling asap or if you have patience sell 115%+ for lvls 5-11: at this point the game should be getting easier so i recommend selling at 125%+ after lvl 6 you will currently gain no new employees. New employees will likely be added in future updates.

Going deep on early lvls provides a "Snowball" effect accelerating future company lvls; for more info on snowball effect ask rudy2

if you hit a wall having patience helps Tremedously. To get over walls use the stock market, go afk with "idlelomania" or "you better be offline". if you have taken the active path start clicking to get over that wall("clicking power" is good for that). Another good way to break walls is to simply reduce upgrading amount and get the green bar full for boost (ive broken many walls by doing that).

Part 2: route 99

At this point you should be lvl 12 and have 16-32x ruby multiplier from farming and almost all furniture unlocked. At lvl 12 you will have 11 ceo points i recommend getting at least 1 of the recommended hybrid skills I recommended earlier maxed ok with that out of the way begin maxing companies go to 150%+ every lvl from here to lvl 80 after lvl 80 sell whenever. Once you can max a company in 1 hr you are at smooth sailing.

tip for late lvls: after a while (50+) the lvls start getting tedious due to the repitiveness of lvling a trick i used to make the grinding easier is to set a goal. Set a goal to have x amount of shares by x lvl it adds variety to your lvls and helps you regain focus