My protein intake is low. Does it matter?

Yes, as the poster above me said, it's more about total grams than percentage.

That said, those percentages are low and if at much of a deficit (or overall low cals, such as 1200), I'd worry they are too low.

If you eat meat, 0.8 g/kg (or about 0.36 g/lb) is the minimum for good health (with the lb amount being a healthy goal weight if you are substantially overweight). If you are a vegan, it's generally recommended to aim a bit higher (1 g/kg or 0.45 g/lb) as you are more likely to be lower on certain amino acids.

It's often recommended to get a bit more if active and/or trying to lose -- at least 0.6 g/lb of a healthy goal weight -- because those actives can be hard on muscle and it helps make sure you have enough to rebuild and maintain muscle.

Some find protein in amounts higher than this worthwhile because they are older and thus more likely to lose muscle (I felt this way as a woman in my 40s) or because they find it sating -- but if you are easily hitting your calorie goal, no issues there.

I agree with others that getting the necessary minimum of protein grams is important.

Two things I want to add to what's been said:

1. It's not an urgent crisis to hit your protein goal Right Now, especially if you're close. You can take a little time to review your food diary; find foods that "cost" too many calories for the nutrition, satiation or pleasure they give you; reduce or eliminate those to free up calories; and add some other food your enjoy that makes a better contribution to your overall nutrition. Gradually and manageably tweaking your nutrition in a positive direction will be fine, as long as you're starting from a generally healthy state (not a medically diagnosed nutritional deficiency). Just keep working on it until you get where you want to be. If it takes a small number of weeks, that's not a huge big deal.

2. You don't have to hit your default macros exactly, ever. Generally, get enough protein, get enough fats - you can treat those as minimums. If you're a little under on fat one day, but over on protein, then the next day it's the opposite, you're fine. You just want to be in the ballpark, on average, over time. That'll be fine.

Humans are highly adaptive omnivores. We're lucky - unlike the majority of our ancestors - to live in a time/place of mostly food abundance, with lots of choices, and bunches of nutrition science information to help us fine tune our eating. But that human history behind us suggests that aiming for pretty good nutrition, most of the time, sometimes a little over, sometimes a little under, is going to be fine. It doesn't have to be absolutely, exactly perfectly spot-on every single day.