The budget for this contract can be estimated based on the provided pricing information. The contract has a minimum quantity of 50 Mbps and a maximum quantity of 1,000 Mbps. The pricing is in Indonesian Rupiah, and the estimated total price for the base year is not explicitly stated. However, assuming an average price of 10,000 IDR per Mbps per month, the estimated total price for the base year would be approximately 600,000,000 IDR (50 Mbps * 10,000 IDR/Mbps/month * 12 months). Considering the four option years, the total contract value could be around 2,400,000,000 IDR (600,000,000 IDR * 4 years). Using an exchange rate of 1 USD = 14,000 IDR, the estimated total contract value in USD would be approximately 171,429 USD (2,400,000,000 IDR / 14,000 IDR/USD). Therefore, the budget estimation for this contract is between 100,000 USD and 250,000 USD.