post metaHow to save a metavalue

post meta - How to save a meta_value as a numeric value after I retrieve it via update_post_meta?
I tried things like $meta_rwp_user_score = (number_format_i18n($meta_rwp_user_score, 2)); , but this is not working. Whe
post metaHow to save a metavalue as a numeric value after I retrieve it via updatepostmeta
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