71 x 247 k food = 17.537 m food
For Extra Low cost ( RT11 ) and Uncommon ( RT02 ) both are 50% 1* heroes and 50% 2* heroes.
If you use 50% 1* / 50% 2* heroes, all colors to level a 5* 1.1, you will need approximately 15.3 m food to reach 5* 4.80.
If you only use 1* heroes, you will need approximately 22 m food.
If you use only loot drop heroes, you will need approximately 19.766 m food.
A wise man.
Notes
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This are only estimates.
It depends what size batches you use, and RNG.
This are only estimates.
It depends what size batches you use, and RNG.