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----
-sidebar_position: 1
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-# Decimal Handling in Cosmos SDK
-
-## Introduction
-
-In the Cosmos SDK, there are two types of decimals: `LegacyDec` and `Dec`. `LegacyDec` is the older decimal type that is still available for use, while `Dec` is the newer, more performant decimal type. The implementation of `Dec` is adapted from Regen Network's `regen-ledger`, specifically from [this module](https://github.com/regen-network/regen-ledger/tree/main/types/math). Migrating from `LegacyDec` to `Dec` involves state-breaking changes, specifically:
-
-* **Data Format**: The internal representation of decimals changes, affecting how data is stored and processed.
-* **Precision Handling**: `Dec` supports flexible precision up to 34 decimal places, unlike `LegacyDec` which has a fixed precision of 18 decimal places.
-
-These changes require a state migration to update existing decimal values to the new format. It is recommended to use `Dec` for new modules to leverage its enhanced performance and flexibility.
-
-## Why the Change?
-
-* Historically we have wrapped a `big.Int` to represent decimals in the Cosmos SDK and never had a decimal type. Finally, we have a decimal type that is more efficient and accurate.
-* `Dec` uses the [apd](https://github.com/cockroachdb/apd) library for arbitrary precision decimals, suitable for accurate financial calculations.
-* `Dec` operations are safer for concurrent use as they do not mutate the original values.
-* `Dec` operations are faster and more efficient than `LegacyDec`.
-
-## Using `Dec` in Modules that haven't used `LegacyDec`
-
-If you are creating a new module or updating an existing module that has not used `LegacyDec`, you can directly use `Dec`.
-Ensure proper error handling.
-  
-```
--- math.NewLegacyDecFromInt64(100)
-++ math.NewDecFromInt64(100)
-
--- math.LegacyNewDecWithPrec(100, 18)
-++ math.NewDecWithPrec(100, 18)
-
--- math.LegacyNewDecFromStr("100")
-++ math.NewDecFromString("100")
-
--- math.LegacyNewDecFromStr("100.000000000000000000").Quo(math.LegacyNewDecFromInt(2))
-++ foo, err := math.NewDecFromString("100.000000000000000000")
-++ foo.Quo(math.NewDecFromInt(2))
-
--- math.LegacyNewDecFromStr("100.000000000000000000").Add(math.LegacyNewDecFromInt(2))
-++ foo, err := math.NewDecFromString("100.000000000000000000")
-++ foo.Add(math.NewDecFromInt(2))
-
--- math.LegacyNewDecFromStr("100.000000000000000000").Sub(math.LegacyNewDecFromInt(2))
-++ foo, err := math.NewDecFromString("100.000000000000000000")
-++ foo.Sub(math.NewDecFromInt(2))
-```
-
-## Modules migrating from `LegacyDec` to `Dec`
-
-When migrating from `LegacyDec` to `Dec`, you need to update your module to use the new decimal type. **These types are state breaking changes and require a migration.**
-
-## Precision Handling
-
-The reason for the state breaking change is the difference in precision handling between the two decimal types:
-
-* **LegacyDec**: Fixed precision of 18 decimal places.
-* **Dec**: Flexible precision up to 34 decimal places using the apd library.
-
-## Impact of Precision Change
-
-The increase in precision from 18 to 34 decimal places allows for more detailed decimal values but requires data migration. This change in how data is formatted and stored is a key aspect of why the transition is considered state-breaking.
-
-## Converting `LegacyDec` to `Dec` without storing the data
-
-If you would like to convert a `LegacyDec` to a `Dec` without a state migration changing how the data is handled internally within the application logic and not how it's stored or represented. You can use the following methods.
-
-```go
-func LegacyDecToDec(ld LegacyDec) (Dec, error) {
-    return NewDecFromString(ld.String())
-}
-```
-
-```go
-func DecToLegacyDec(ld Dec) (LegacyDec, error) {
-    return LegacyDecFromString(ld.String())
-}
-```
-