暴涨4000万，伦纳特-卡尔创造德转历史德甲球员身价涨幅纪录（身价飙升4000万，伦纳特-卡尔刷新德转史上德甲球员涨幅纪录）

Clarifying user needs

I should ask the user what they specifically need: a summary, details, or something else. I can give a general explanation about transfermarkt market value changes while requesting a link or more context. Transfermarkt updates market values periodically, and the largest increases often happen during breakout seasons, but I'm not familiar with this player. I'll ask if they want a news brief, context, or a translation, and propose options in a numbered list to make it clear.