```\\nfunction _scaleAmountByPercentage(uint256 amount, uint256 scaledPercent)\\n  internal\\n  pure\\n  returns (uint256 scaledAmount)\\n{\\n  // use assembly to bypass checking for overflow & division by 0\\n  // scaledPercent has been validated to be < PERCENTAGE_SCALE)\\n  // & PERCENTAGE_SCALE will never be 0\\n  // pernicious ERC20s may cause overflow, but results do not affect ETH & other ERC20 balances\\n  assembly {\\n    /* eg (100 * 2*1e4) / (1e6) */\\n    scaledAmount := div(mul(amount, scaledPercent), PERCENTAGE_SCALE)\\n  }\\n}\\n```\\n