The reward of obligatory deeds in Ramadan is multiplied by how much?

The reward of obligatory deeds in Ramadan is multiplied by how much?

رمضان المبارک میں فرض اعمال کا ثواب کتنے سے زیادہ ہے؟
Explanation

The reward for fasting is mentioned in the following Hadeeths: “Every action of the son of Adam is given manifold reward, each good deed receiving ten times its like, up to seven hundred times.