Format raw units exactly, omitting redundant fractional zeroes.
Decimals must be 0–255. Uses no floating-point conversion or display rounding.
`formatUnits(-1205n, 2)` returns `"-12.05"`. Copy
`formatUnits(-1205n, 2)` returns `"-12.05"`.
Format raw units exactly, omitting redundant fractional zeroes.
Decimals must be 0–255. Uses no floating-point conversion or display rounding.