C A R A N N = W E N P e − 1 ∗ c a r f u e l 1 + W E N P e − 2 ∗ c a r f u e l 2 + W E N P e − 3 ∗ c a r f u e l 3 {\displaystyle CARANN=WENP_{e-1}*\mathbf {carfuel1} +WENP_{e-2}*\mathbf {carfuel2} +WENP_{e-3}*\mathbf {carfuel3} }
S A C A R B = S A C A R B t − 1 + C A R A N N + ( W F O R S T t − 1 − W F O R S T ) ∗ c a r f o r s t − c a r a b r {\displaystyle SACARB=SACARB^{t-1}+CARANN+(WFORST^{t-1}-WFORST)*\mathbf {carforst-carabr} }
where
<math>SACARB^{t-1}=\mathbf{carinit}