What is the average and the latest price? What is the MACD DIFF DEA indicator?

Average price = total value of the deal at the current moment/deal

Latest Price = Price at current time

I. Smooth similarities and differences average (moving Average Convergence divergence)
Principle:
MACD (Moving Average Convergence divergence) Chinese name: Smooth similarities and differences moving averages are published by Gerald Appel First in systems and forecasts, The paper mainly uses the long and short-term two smoothed average lines to calculate the difference between the two, as the basis for the analysis of market trading.

Algorithm:
Diff line Close Short, long-term exponential smooth moving average difference between
M-day exponential smoothed moving average of the diff line of the DEA line
difference between MACD line diff line and Dea line, colored columnar line
Parameters: Short, long (long), M days, typically 12, 26, 9

Usage:
1.DIFF, Dea are positive, DIFF upward breakthrough dea, buy signal.
2.DIFF, DEA are negative, DIFF downward below the DEA, sell signal.
3.DEA line and Candlestick divergence, the market reversal signal.
4. Analysis of MACD-histogram, from positive to negative, sell signal, negative change positive, buy signal.

What is the average and the latest price? What is the MACD DIFF DEA indicator?