物价指数

• 亻(person; human)RADICAL
• 介(middle; center; intermediate)PHONO-SEMANTIC

Price is determined by a middleman standing between two trading parties to mediate the deal.

• 扌(hand; arm)RADICAL
• 旨(meaning; delicious)PHONO-SEMANTIC

Use your hand to point at what you want to say.

• 娄(many times; piled up)PHONO-SEMANTIC
• 攵(tap; hand motion)RADICAL

Counting numbers is using your hand to tap repeatedly many times in order to calculate.