allowing to specify percentage-based factors (like 1.125 for 112.5%)

CHANGELOG.md

@@ -2744,3 +2744,7 @@ If there are any bugs, improvements, optimizations or any new feature proposal f
 #### web3
 
 -   Exported EIP-6963 types are no longer under the `providers` namespace. (#7270)
+
+#### web3-eth
+
+- Allow specifying percentage based factor in Web3Eth.calculateFeeData Param baseFeePerGasFactor #7332

packages/web3-eth/src/web3_eth.ts

@@ -308,7 +308,7 @@ export class Web3Eth extends Web3Context<Web3EthExecutionAPI, RegisteredSubscrip
 	 * ```
 	 */
 	public async calculateFeeData(
-		baseFeePerGasFactor = BigInt(2),
+		baseFeePerGasFactor: number = 2,
 		alternativeMaxPriorityFeePerGas = ethUnitMap.Gwei,
 	): Promise<FeeData> {
 		const block = await this.getBlock<{ number: FMT_NUMBER.BIGINT; bytes: FMT_BYTES.HEX }>(
@@ -348,7 +348,8 @@ export class Web3Eth extends Web3Context<Web3EthExecutionAPI, RegisteredSubscrip
 			// and we multiply the `baseFeePerGas` by `baseFeePerGasFactor`, to allow
 			// trying to include the transaction in the next few blocks even if the
 			// baseFeePerGas is increasing fast
-			maxFeePerGas = baseFeePerGas * baseFeePerGasFactor + maxPriorityFeePerGas;
+			const baseFeeMultiplier = BigInt(Math.floor(baseFeePerGasFactor * 1000)) / BigInt(1000); 
+			maxFeePerGas = baseFeePerGas * baseFeeMultiplier + maxPriorityFeePerGas;
 		}
 
 		return { gasPrice, maxFeePerGas, maxPriorityFeePerGas, baseFeePerGas };