The actual specific class you belong to can be tricky because there are sub-classes and shit like that but generally speaking you can simplify class dynamics into the owning class (bourgeoisie) and the working class (proletariat). If you own the means of production, the actual property such as land or machinary required to produce things, and you buy others labor to produce these things that you then sell, you are bourgeoisie. If you sell your labor then your are proletariat. You'll find that the interests of these classes are in opposition; the bourgeois wants to increase profit through any means so as to provide for themselves and for investors while the prole wants a better standard of living, a safe work environment, and less work hours among many other things I need not name. These interest come into direct conflict when the capitalist runs out of ways to externally increase profit controlling a certain market niche, there is only so much demand. When this happens the capitalist looks inward at their company and wonders if they can increase profit through other means like cutting pay, skirting around safety regulations, finding ways to get around providing benefits, cutting pensions, etc etc. The really big bourgeoisie also look towards the legal system, if it only cost them 60mil of lobbying to change a law that makes them billions then that law is dead. The profit motive kills