The old bundle price in Arsenal is based on the SR4 prices, not the SR4A prices. SR4A jacked up the pricing schemes for skillsofts. Would be nice to know if they ever plan on addressing that.
Using SR4, pg. 321, to calculate the individual prices:
Medicine 2: 6,000¥ (Rating X 3,000¥)
First Aid 3: 9,000¥ (Rating X 3,000¥ again)
Know DW 3: 3,000¥ (Rating X 1,000¥)
Total cost: 18,000¥.