Mining economics looks complicated from the outside, but the levers are simple. There are four variables, and everything else is decoration. Understand these and you can read any mining situation honestly.
1. Your hashrate
Hashrate is how much work your hardware does per second. It is the only one of the four variables that you fully control. Better hardware, better cooling, and a stable power supply move this number up. Cheap heat-throttled hardware moves it down. Measure your own hashrate during a real session before you trust any spec-sheet figure.
2. The MLRT price
Price is the variable that gets the most attention and that you have the least control over. It is set by buyers and sellers wherever MLRT trades. Honest planning treats today's price as fact and treats future price as unknown. If your spreadsheet needs the price to go up to make sense, that is a position on the market, not a mining plan.
3. Network difficulty (and total network hashrate)
This is the variable most home miners forget. The Malairte protocol adjusts difficulty so blocks come out at roughly the same rate regardless of how much hashrate the network has. If more people start mining, the network gets harder and your share of the rewards goes down, even though you are doing the same amount of work. A coin getting more popular among miners is a headwind for any individual miner.
4. Your power cost
Watts at the wall times hours times your local electricity rate. This is the floor your mining has to clear before any of it can be called profit. It is also the variable you can usually do the most about: undervolting, running off-peak, or running less hardware can all shift this number. A miner in a cheap-electricity region has a completely different economic picture than one paying premium urban rates.
Why these four are enough
Once you know these four, you can answer any "should I mine" question for yourself. Hardware vendors, pool operators, and coin promoters all have reasons to add extra variables to the conversation. You do not have to.