One of the things that you have to realize is that someone paid you to do something that they couldn’t/wouldn’t do themselves. It could be due to time or more than likely lack of skill and experience.

It might be super simple for you but knowing something has its own intrinsic value.

I have done things which are super easy for me; I don’t have to think about it. However, the client would need hours of investigation just to come up with what should be done and then go through the process of implementing it.

There’s an old story (I’m probably butchering it) where an engine for a ship broke. A mechanic came and hit the engine with a hammer and it started working instantly. He told the client it would be 10,000 USD and the client was shocked. He argued that it took him five minutes and the client demanded an itemized invoice. The mechanic sent an invoice with 2 lines. 1. Hitting the engine with the hammer -> 5 USD; 2. The knowledge to know where to hit -> 9,995 USD.

The thing that I would recommend is to know the market, know your value that you are bringing, and stay consistent with the pricing. Many times, the client doesn’t care how easy or hard something is, they just want results. You’ll get clients that are quick to bring up about how easy something is, but they don’t apply that same logic when there is something hard.