Nested IF function with multiple criteria

Hello,
Dear users,
I need your help to create a formula where I can have multiple conditions using IF statement.

See the attached file.

I want a formula like:

Formula:

=IF(E5>=100%;$F$3;IF(AND(E5>=70%;E5<70%);E5*$F$3;"0"))

I don't know where is the error here.

Thank you for your time.

Regards,

Florian