Functions:

Normal screen
・Tap the Number,BS,ENTER to data input cell.
Indicate Total value to Bottom of screen.　　　
・Tap the cell to add memo or Numerical correction.
・Long Tap the cell to the clear.
・Menu → SAVE :Memory to MEMORY to The current value.
・Menu → CLEAR :Clear to The current value.
・Memory icon :Indicate MEMORY screen.

Memory screen
・Indicate data in Memory.
・Tap the cell to memo correction.
・Long Tap the cell to the clear.
・Menu → ALL CLEAR :Clear to The all data.
・Home icon :Return to Normal screen.