Ever since 'Produce 101' and promotions with IOI, the two members successfully made their name known and gained immense love. This also led to various opportunities for CFs, variety shows, and more.

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Kim Se Jung reportedly filmed about 10 CFs, gaining a large sum of income. Kang Mina also reportedly gained a good amount of earnings through individual promotions. It's revealed that the two idols equally share the earnings from their individual promotions with the members of Gugudan. 

A rep from Jellyfish Entertainment explained, "Kim Se Jung and Kang Mina have been sharing their earnings from CF and other individual promotions with the Gugudan members. Currently, they're continuing to share their individual earnings with the members of Gugudan. The parents of Kim Se Jung and Kang Mina were the first to recommend sharing the earnings with Gugudan members who are also working hard with them."