I want to conduct a meta-analysis using R on a bunch of articles. The outcomes are in percentage format. I didn't find any standard error in each article (The reason I mention this because I saw an article conducted similar meta-analysis on percentage, but it uses standard error which they found from each paper as weight). I am wondering how could I use R to do this kind of meta-analysis? In the beginning, I thought that I could use metaprop, but after I checked the example, I think I can only use metaprop when I want to compute the proportion. For example, we have several events out of the total sample size for each article, and we can use metaprop to compute it. But the outcome variable that I am gonna use is already percentage (e.g. 0.51, 0.36), could you please help me with it? Thank you so much!