Optional
displayDecimals: numberbase: original value, display: unScaled value with 0-3 decimals with comma, formatted: unScaled value with all decimals
getFormattedAmount('12345678900223', 6, 3) // { base: 12345678900223n, display: '12,345,678.9', formatted: '12345678.900223' }
un-scales unit with give decimals and returns