Change Variable
my_variable = my_variable + 1Example

The variable “score” is declared as a “number” and checked to display on the stage.
// Example: variables
score = 0
example_Sprite_sprite.show()
example_Sprite_sprite.say('click me to add 1 to displayed score variable')
example_Sprite_sprite.whenClicked(function (){
score = score + 1
})