I'm using a dual lye calculation 80/20 and the KOH is coming out way off. I used the exact sap values to calculate and also used AI. I get 83.32g KOH before superfatting or adding citric acid. The calculator says it is 92.58g, which is far off. The NaOH value is only 0.12g lower than my calculation, so that is acceptable. Wondering why the KOH is so far off? I'm using 90% purity and I have that marked correctly.