diff --git a/src/contracts/core/DelegationManager.sol b/src/contracts/core/DelegationManager.sol
index f8ab5a2dd4..e8799856e7 100644
--- a/src/contracts/core/DelegationManager.sol
+++ b/src/contracts/core/DelegationManager.sol
@@ -427,6 +427,9 @@ contract DelegationManager is
         uint256 shares,
         uint256 proportionPodBalanceDecrease
     ) external onlyEigenPodManager {
+        // read doc to understand this
+
+        // a_n
         uint256 scaledSharesBefore = 
             shares
             * beaconChainScalingFactors[staker] / SlashingLib.PRECISION_FACTOR
@@ -434,6 +437,7 @@ contract DelegationManager is
 
         beaconChainScalingFactors[staker] = beaconChainScalingFactors[staker] * (SlashingLib.PRECISION_FACTOR - proportionPodBalanceDecrease) / SlashingLib.PRECISION_FACTOR;
 
+        // a_{n+1}
         uint256 scaledSharesAfter = 
             shares
             * beaconChainScalingFactors[staker] / SlashingLib.PRECISION_FACTOR