From be50479c65a3b0435a344b7e4087b71efb5e13a0 Mon Sep 17 00:00:00 2001
From: Maciek Malik <maciej.malik@blockydevs.com>
Date: Tue, 17 Sep 2024 15:42:21 +0200
Subject: [PATCH] Fix compute budget max fees calculation - convert
 microlamports to lamports

---
 libsol/compute_budget_instruction.c | 3 ++-
 libsol/compute_budget_instruction.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/libsol/compute_budget_instruction.c b/libsol/compute_budget_instruction.c
index 64695ad..95eb4f5 100644
--- a/libsol/compute_budget_instruction.c
+++ b/libsol/compute_budget_instruction.c
@@ -57,7 +57,8 @@ static uint32_t calculate_max_fee(const ComputeBudgetFeeInfo* info) {
             max_compute =
                 MIN(info->instructions_count * MAX_CU_PER_INSTRUCTION, MAX_CU_PER_TRANSACTION);
         }
-        return max_fee + (info->change_unit_price->units * max_compute);
+        return max_fee +
+               ((info->change_unit_price->units * max_compute) / MICRO_LAMPORT_MULTIPLIER);
     }
     return max_fee;
 }
diff --git a/libsol/compute_budget_instruction.h b/libsol/compute_budget_instruction.h
index c68f3e6..0eadaa6 100644
--- a/libsol/compute_budget_instruction.h
+++ b/libsol/compute_budget_instruction.h
@@ -9,6 +9,7 @@
 #define MAX_CU_PER_INSTRUCTION     200000
 #define MAX_CU_PER_TRANSACTION     1400000
 #define FEE_LAMPORTS_PER_SIGNATURE 5000
+#define MICRO_LAMPORT_MULTIPLIER   1000000
 
 extern const Pubkey compute_budget_program_id;