Could not find a chart with the breakdown "of them children" for Palestine on Statista.
Experts believe the real death toll in Gaza is at least ~4.4x what this shows, so IOF is more accurately ~40 times worse.
Applying a conservative estimate of four indirect deaths per one direct death to the 37,396 deaths reported, it is not implausible to estimate that up to 186,000 or even more deaths could be attributable to the current conflict in Gaza.
https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(24)01169-3/fulltext
Using this estimate, the civilian deaths per day average is 497.33 in Gaza.
The UN agency said it verified the details of 8,119 people killed in Gaza from November 2023 to April 2024.
Its analysis found around 44% of verified victims were children and 26% women. The ages most represented among the dead were five to nine-year-olds.
About 80% of victims were killed in residential buildings or similar housing, the agency added.
above quotes from here: https://www.bbc.com/news/articles/cn5wel11pgdo
It seems like it's just providing a simple resource to argue against those liberals who say that the war in Ukraine is one of extermination or somehow worse than what is happening in Palestine. I once got someone saying Ukraine was 10x worse and, after I showed them a version of the OP, they just said the Holodomor proves that Russia wants to exterminate Ukrainians.
There's nothing wrong with this setting off a little alarm bell in your head, that's a good thing to look out for, but I think it's fine in this case.