A confusion regarding SL3

[.::Rizwan::.]

Today i have calculated a code
[s]tatus [p]ause [r]esume [q]uit =>
Status.......: Cracked
Hash.Type....: SL3
Time.Running.: 2 mins, 23 secs
Time.Left....: 22 mins, 3 secs
Plain.Text...: ********0108050609090300090609
Plain.Length.: 15
Speed........: 8041.6M/s
Progress.....: 989353176698880/1000000000000000 (98.94%)
HW.Monitor.#1: 99% GPU, 80c Temp
HW.Monitor.#2: 94% GPU, 75c Temp
HW.Monitor.#3: 94% GPU, 75c Temp
HW.Monitor.#4: 94% GPU, 75c Temp

Started: Mon Sep 05 15:15:44 2011
Stopped: Mon Sep 05 15:18:10 2011

the code calculated is "xxxxxxxxxx02080105060200090609"

according to code it should be calculated on 96.90% but as you can see in log it is calculated on 98.94%.

Any explanation?