Its not only Carrefour MH ... TOPS (Central), BigC and Lotus all do the same
For example 'Langford's' traditional British pork sausages - before 99 Baht - now 200 Baht - go figure ... ok oil may be at a record but doesnt justify a >100% price jump and thats not the only thing... inflation in food stuff is rampant the past year - I'd say ~10%++ across the board.