Enter hashrate detexify bitcoin mining for responsive chart! The diff change is the rate at which the network difficulty is changing every month.
Diff change is used for the estimated future profits graph and break-even analysis. Typically in crypto, network difficulty tends to increase over time, meaning a miner will generate less crypto with the same hardware. Accounting for this changing difficulty is essential to generate long term profitability predictions. The diff change value is calculated by looking at the current difficulty and comparing it to the 12 hour moving average of the difficulty one month ago. Diff Change value is very large.