fix all wrong price

Author: open-junius

precompiles/src/alpha.rs

@@ -205,7 +205,8 @@ where
             }
         }
 
-        let price: SubstrateBalance = sum_alpha_price.saturating_to_num::<u64>().into();
+        let price = sum_alpha_price.saturating_mul(U96F32::from_num(1_000_000_000));
+        let price: SubstrateBalance = price.saturating_to_num::<u64>().into();
         let price_eth = <R as pallet_evm::Config>::BalanceConverter::into_evm_balance(price)
             .map(|amount| amount.into_u256())
             .ok_or(ExitError::InvalidRange)?;