Anycubic is offering its PETG 10 kg bulk filament package for $107.99, marked down from $249.90. That works out to about $10.80 per kilogram.
The listing includes multiple colors and Anycubic currently advertises free express shipping. Price, color availability, shipping, and promotion terms can change at any time, so verify the final price before checkout.
Retailer link: Anycubic product page