Answer:
Demand-pull and cost-pull conditions are whats responsible for inflation thus causing price increase. As an individual, theres not much we can do to directly maintain prices as it pretty much depends by the country's demand and supply cost. What we can do is to study and get a job and contribute to the country. Next is to save and conserve, only buy things you need, never buy far beyond what you need as this will affect demand, even the slightest change stacks and then causes price spikes. Recycle as a part of conserving, this way you are helping save supply costs somehow. We cannot do much to save product prices going up or down, especially oil prices nowadays but we can still contribute as a concerned citizen.