ACC-0001 · claude-sonnet-5 (high)
# response.md

**Working:**
GST-inclusive price = $1,100
GST rate = 10%, so GST component = 1/11 of the total price.

(a) GST amount = $1,100 ÷ 11 = **$100**

(b) GST-exclusive price = $1,100 − $100 = **$1,000**