Need help with the Math.

So Im using this recipe http://bit.ly/2WHOw9O Acid – 8 oz.Shea Butter – 4 oz.Coconut Oil – 8 oz.Tallow – 5 oz.Castor Oil – 4 oz.Glycerin – 4.35 oz. (15% of oils)Sodium Hydroxide – 2.06 oz.Potassium Hydroxide – 3.10 oz.Sodium Lactate – 2 oz. (helps the soap stay fluid)Water – 25.8 oz. (five times total lye)Now I want to add 4oz of mango seed butter and 4oz of sweet almond oil but how much must I bump up thelye's to? I was thinking for sodium hydroxide from 2.06oz to 3.06oz and potassium hydroxide from 3.10 to 4.10 ( just adding one more point im a real genius) is this to little or to much? I've tried the soap calculator but I didn't get it because the results where off, Help would be very appreciated. via /r/soapmaking https://www.reddit.com/r/soapmaking/comments/bwie4s/need_help_with_the_math/?utm_source=ifttt