A 500g package of Coles regular mince has approximately 20g protein per 100g serve, for 230 calories, with 17g of fat:
https://shop.coles.com.au/a/national/product/coles-beef-mince-3-star-8850188p?uztq=46abcbb7e16253b0cdc3e6c5bbe6a3f0&cid=col_cpc_Generic%7CColesSupermarkets%7CPLA%7CMeat&Seafood%7CAustralia%7CBroad&s_kwcid=AL!12693!3!495628917070!!!u!364576380634!&gclid=Cj0KCQiAweaNBhDEARIsAJ5hwbdJrs4WlK-UXuFK4uK34ShBc_VsCtksKX4ZKZJsx6DNjb44dtIw-IoaAln9EALw_wcB&gclsrc=aw.ds
However, the same brand, same weight of extra lean mince has 21g of protein oer 100g serve, basically the same amount, but with 5g of fat for 133 calories:
https://shop.coles.com.au/a/national/product/coles-beef-lean-5-star-mince?uztq=46abcbb7e16253b0cdc3e6c5bbe6a3f0&cid=col_cpc_Generic%7CColesSupermarkets%7CPLA%7CMeat&Seafood%7CAustralia%7CBroad&s_kwcid=AL!12693!3!495628917070!!!u!364576380634!&gclid=Cj0KCQiAweaNBhDEARIsAJ5hwbei6dV_IZvojWbW0vlwsMjM7Ail1WxVqTGnuYSZwYBSnhJG2UjWViQaAnqaEALw_wcB&gclsrc=aw.ds
My question is, what is making up the extra weight? Less fat, same protein, same weight? Did they just add indigestible sawdust to bulk up the weight without increasing the calories?