I've run into some strange behaviour when converting values to strings that require rounding up. For example, see the code snippet below:

var b decimal.Big
b.SetString("9.996208266660")
fmt.Println(fmt.Sprintf("%.2f", &b)) // Should be 10.00, but is 1.000

b.SetString("0.9996208266660")
fmt.Println(fmt.Sprintf("%.2f", &b)) // Should be 1.00, but is 0.100

Other values appear to be fine – this appears to only happen when rounding up to include an additional digit, almost as if the decimal point is being outputted 1 position left from where it should be. Any idea why this may be happening? More examples can be found here. Thanks!