diff --git a/Frontend/src/lib/components/GeneratorShop.svelte b/Frontend/src/lib/components/GeneratorShop.svelte
index 9e39006..3521246 100644
--- a/Frontend/src/lib/components/GeneratorShop.svelte
+++ b/Frontend/src/lib/components/GeneratorShop.svelte
@@ -2,6 +2,7 @@
 	import { scale } from 'svelte/transition';
 	import { quintOut } from 'svelte/easing';
 	import { game } from '$lib/stores/game.svelte';
+	import { generatorEffectiveProduction } from '$lib/core/economy';
 	import { formatNumber } from '$lib/utils/formatNumber';
 	import CollapsiblePanel from './CollapsiblePanel.svelte';
 </script>
@@ -14,12 +15,14 @@
 	{#each game.state.generators as gen, i}
 		{@const cost = game.generatorCostWithTree(gen)}
 		{@const canAfford = game.state.resources >= cost}
-		{@const currentProd = gen.baseProduction * gen.owned}
+		{@const effectiveProd = generatorEffectiveProduction(gen, game.state)}
+		{@const nextUnitProd = generatorEffectiveProduction({ ...gen, owned: 1 }, game.state)}
+		{@const share = game.productionPerSecond > 0 ? (effectiveProd / game.productionPerSecond * 100) : 0}
 		<div
 			class="gp-row {canAfford ? 'gp-row--active' : 'gp-row--locked'}"
 			in:scale={{ delay: i * 30, duration: 200, start: 0.95, easing: quintOut }}
 		>
-			<div class="flex flex-col min-w-0">
+			<div class="flex flex-col min-w-0 flex-1">
 				<div class="flex items-center gap-1.5">
 					<span class="gp-value">{gen.name}</span>
 					{#if gen.owned > 0}
@@ -31,12 +34,19 @@
 						</span>
 					{/if}
 				</div>
-				<span class="gp-label">
-					+{gen.baseProduction}/s
-					{#if gen.owned > 0}
-						<span class="gp-accent-green"> · {formatNumber(currentProd)}/s</span>
-					{/if}
-				</span>
+				{#if gen.owned > 0}
+					<div class="flex items-center gap-1">
+						<span class="gp-label gp-accent-green">{formatNumber(effectiveProd)}/s</span>
+						<span class="gp-label">·</span>
+						<span class="gp-label">{share.toFixed(0)}%</span>
+					</div>
+					<!-- Mini progress showing share of total production -->
+					<div class="h-[2px] rounded-full mt-0.5" style="background: rgba(255,255,255,0.06);">
+						<div class="h-full rounded-full" style="width: {Math.min(share, 100)}%; background: var(--color-gp-accent-green); opacity: 0.5;"></div>
+					</div>
+				{:else}
+					<span class="gp-label">+{formatNumber(nextUnitProd)}/s par unite</span>
+				{/if}
 			</div>
 			<button
 				onclick={() => game.buy(gen.id)}
diff --git a/Frontend/src/lib/core/economy.ts b/Frontend/src/lib/core/economy.ts
index a3c6ed5..4e88c97 100644
--- a/Frontend/src/lib/core/economy.ts
+++ b/Frontend/src/lib/core/economy.ts
@@ -575,20 +575,19 @@ export function generatorCost(gen: Generator, tree?: EvolutionNode[]): number {
   return Math.max(1, Math.floor(base * (1 - reduction)));
 }
 
+// Production effective d'un seul générateur (avec tous les bonus appliqués)
+export function generatorEffectiveProduction(gen: Generator, state: GameState): number {
+  if (gen.owned === 0) return 0;
+  const nidBoost = gen.id === "nid" ? getGeneratorBoostFromTree(state.evolutionTree) : 1;
+  const treeMultiplier = getProductionMultiplierFromTree(state.evolutionTree);
+  const synergyMult = getGeneratorSynergyMultiplier(state.evolutionTree, state.generators);
+  const convergenceBoost = getAllEffectsBoost(state.evolutionTree);
+  return gen.baseProduction * gen.owned * nidBoost * state.prestigeMultiplier * treeMultiplier * synergyMult * convergenceBoost;
+}
+
 // Production totale par seconde de tous les générateurs
 export function totalProductionPerSecond(state: GameState): number {
-  const nidBoost = getGeneratorBoostFromTree(state.evolutionTree);
-  const synergyMult = getGeneratorSynergyMultiplier(state.evolutionTree, state.generators);
-  const base = state.generators.reduce(
-    (sum, gen) => {
-      const boost = gen.id === "nid" ? nidBoost : 1;
-      return sum + gen.baseProduction * gen.owned * boost;
-    },
-    0
-  );
-  const treeMultiplier = getProductionMultiplierFromTree(state.evolutionTree);
-  const convergenceBoost = getAllEffectsBoost(state.evolutionTree);
-  return base * state.prestigeMultiplier * treeMultiplier * synergyMult * convergenceBoost;
+  return state.generators.reduce((sum, gen) => sum + generatorEffectiveProduction(gen, state), 0);
 }
 
 // Lazy calculation : ressources accumulées depuis lastTick