Saw Yield

What is Saw Yield in Build A Ring Farm?

Saw Yield is the upgrade that decides how much of your harvest the rotating saw actually banks. It lives in the harvest formula as the (1 + saw bonus / 7) factor, multiplying everything else you've stacked.

Where the saw bonus lives in the formula

Saw Yield is the last factor in the harvest equation — and because it's multiplicative, it scales everything before it.

FinalPrice = unit × 1.25^(level-1) × cashMul × mutationMul × ringMul × (1 + sawBonus / 7)

The saw factor multiplies the full result, so a +7 saw bonus is worth the same +100% whether your plant is worth $1k or $1B. That's why it climbs the upgrade priority list as your unit prices grow.

Saw bonus → multiplier

Divide the saw bonus by 7 and add 1. That's your saw factor.

Saw bonusSaw factorIncome gain
+01.000×
+11.143×+14%
+21.286×+29%
+31.429×+43%
+51.714×+71%
+72.000×+100%
+143.000×+200%

What it looks like in cash

Same plant — a 40k unit-price seed at Level 10 on the Outer Ring (19×) with a Rainbow mutation (5×) — with and without a +7 saw bonus.

No saw bonus (1.00×)

$28,312,206

With +7 saw bonus (2.00×)

$56,624,413