Marry had $\frac{7}{5}$ as many stickers as Alexis.~Marry and Alexis each gave $20 \%$ of their stickers to Charlotte. As a result, Charlotte\textquotesingle s stickers increased by $80 \%$. If Mary had $20$ stickers more than Charlotte in the end, how many stickers did Alexis have at first? 
Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Fractions and Percentages->Percentages Word Problems