Day 2 how to find MACD

MACD (12,26,9)default setting:
(12) – The 12 period exponentially weighted average (EMA) or 'fast line'
(26) – The 26 period EMA or 'slow line'
(9) – The 9 period EMA of the MACD line, known as the 'signal line'
The histogram also shows the strength of the trend. Let's take a look at the free Pifzer PFE stock.

Adding MACD on to the day 1 MA20, we see the MA20 on the chart gives a slower buy signal (price close above the MA20). See the blue arrow on 14th Mar. The green histogram is growing, the price close above MA20,the MACD red signal line just cross up the zero line - - >a safe bet to buy