I want to store decimal value in a storage variable and later use that variable at same precision in the formula later internally

Question

I want to store uint public MINTING_VELOCITY = 0.000002;

And later use it in the formula: A x t x MINTING_VELOCITY ,where A = 2000 ,t(staking_duration_time) = 120

Issue is currently MINTING_VELOCITY is reading 0.

How to take the exact/fetch the decimal value with exact precision?Please follow the code shared in the screenshot to understand the scenario better

How to achieve that via solidity .Please help!

Answer 1

Just use cast to integer arithmetic:

MINTING_VELOCITY = 2
ACCURACY_RATIO = 1000000

And the formula converts to: A x t x MINTING_VELOCITY / ACCURACY_RATIO