Hi @Glebenerd,
Yes, there is a way to convert it into Number in Microsoft Flow.
An easy way for you to manage,
1. Add one compose Action, choose the field (Dynamic content from the form actions) that you would like to convert as the Compose Input,
2. Add another Compose Action, under the Input, copy and paste the following:
"@int(outputs('Compose'))" //for integer
Or
"@float(outputs('Compose'))" // for floating-point number
Function reference: WorkFlow Definition Language.
3. Then use the Dynamic outputs of Compose 2 for the atcual field.
Regards,
Michael