The following table assumes 9 hands / level are played, this might actually be as low as 6 or as high as 14. It assumes breaks are exactly 5 minutes, they're more like 5.5 to 7 It assumes costs for the break level are evenly split to both sides of the break, this isn't true in practice but it should average out over time.   Why is this important or interesting? The level cost is your cost to "sit out" a particular level.   If you finish the first hour with 3000 chips, that might seem like a great result (all things considered, it's not a bad result), but you can see from the chart that it means you're only 3/4 of the way to finishing hour 2 flat broke. In order to finish hour 2 at least as well as you started, you must earn (win) 38% more chips than you now have.  
Hour 1:
Level  1 (100%) :  20/40      Cost  60 
Level  2 (100%) :  30/60      Cost  90
Level  3 (100%) :  40/80      Cost 120
Level  4 (100%) :  50/100     Cost 150
Level  5 (100%) :  60/120 10  Cost 270
Level  6 ( 50%) :  80/160 15  Cost 190    

Cumulative Cost : Level/Tourney : 880 / 880    

Hour 2:
Level  6 ( 50%) :  80/160 15  Cost  185
Level  7 (100%) : 100/200 20  Cost  480
Level  8 (100%) : 125/250 25  Cost  600
Level  9 (100%) : 150/300 30  Cost  720
Level 10 (100%) : 200/400 40  Cost  960
Level 11 (100%) : 250/500 50  Cost 1200  

Cumulative Cost : Level/Tourney : 4145 / 5025  

Hour 3:
Level 12 (100%) :  300/600   60  Cost 1440
Level 13 (100%) :  400/800   80  Cost 1920
Level 14 (100%) :  500/1000 100  Cost 2400
Level 15 (100%) :  600/1200 120  Cost 2880
Level 16 (100%) :  800/1600 160  Cost 3840
Level 17 ( 50%) : 1000/2000 200  Cost 2400  

Cumulative Cost : Level/Tourney : 14880 / 19905  

Hour 4:
Level 17 ( 50%) : 1000/2000 200  Cost  2400
Level 18 (100%) : 1250/2500 250  Cost  6000
Level 19 (100%) : 1500/3000 300  Cost  7200
Level 20 (100%) : 2000/4000 400  Cost  9600
Level 21 (100%) : 2500/5000 500  Cost 12000
Level 22 (100%) : 3000/6000 600  Cost 14400  

Cumulative Cost : Level/Tourney : 51600 / 71505  

Hour 5:
Level 23 (100%) :  3500/7000   700  Cost 16800
Level 24 (100%) :  4000/8000   800  Cost 19200
Level 25 (100%) :  5000/10000 1000  Cost 24000
Level 26 (100%) :  6000/12000 1200  Cost 28800
Level 27 (100%) :  8000/16000 1600  Cost 38400
Level 28 ( 50%) : 10000/20000 2000  Cost 24000  

Cumulative Cost : Level/Tourney : 151200 / 222705    

Hour 6:
Level 28 ( 50%) : 10000/20000 2000  Cost 24000