diff --git a/info/Concepts/Quick-ref.t b/info/Concepts/Quick-ref.t
index b8e91af0..6bf28ac3 100644
--- a/info/Concepts/Quick-ref.t
+++ b/info/Concepts/Quick-ref.t
@@ -23,17 +23,17 @@ Sector-types:
 
 Products:
 Item      $    Lcm  Hcm Iron Dust  Oil  Rad   Tech   Production Eff.
-Shells:   3     2    1    0    0    0    0     20    (tlev-20)/(tech-10)
-Guns:    30     5    10   0    0    1    0     20    (tlev-20)/(tech-10)
+Shells:   3     2    1    0    0    0    0     20    (tech-20)/(tech-10)
+Guns:    30     5    10   0    0    1    0     20    (tech-20)/(tech-10)
 Iron:     0     0    0    0    0    0    0      0    0
 Dust:     0     0    0    0    0    0    0      0    0
 Bars:    10     0    0    0    5    0    0      0    0
-Food:     0     0    0    0    0    0    0      0    (tlev+10)/(tlev+20)
-Oil:      0     0    0    0    0    0    0      0    (tlev+10)/(tlev+20)
-Petrol    1     0    0    0    0    1    0     20    (tlev-20)/(tech-10)
-Lcm:      0     0    0    1    0    0    0      0    (tlev+10)/(tlev+20)
-Hcm:      0     0    0    2    0    0    0      0    (tlev+10)/(tlev+20)
-Rad:      2     0    0    0    0    0    0     40    (tlev-40)/(tlev-30)
+Food:     0     0    0    0    0    0    0      0    (tech+10)/(tech+20)
+Oil:      0     0    0    0    0    0    0      0    (tech+10)/(tech+20)
+Petrol    1     0    0    0    0    1    0     20    (tech-20)/(tech-10)
+Lcm:      0     0    0    1    0    0    0      0    (tech+10)/(tech+20)
+Hcm:      0     0    0    2    0    0    0      0    (tech+10)/(tech+20)
+Rad:      2     0    0    0    0    0    0     40    (tech-40)/(tech-30)
 Educate:  9     1    0    0    0    0    0      0    0
 Happy:    9     1    0    0    0    0    0      0    0
 Tech:  5*ETUS  10    0    0    1    5    0      0    (edu-5)/(edu+5)