Lessons

Write the number you would have said yesterday

What it is
Before any counting, this app asks what you think you earn. Not what you can prove — what you would have told a friend.
Why it matters
The gap between the remembered number and the counted one is the most useful thing here. Almost nobody is close. The memory keeps the good month and quietly drops the empty ones, which is how a person plans a life around a figure that never existed.
The method
Say it fast, without checking anything. Then let the arithmetic answer separately. The two numbers get shown side by side at the end.
Example
Danish would have said PKR 300,000 a month. Twelve months of actual payments came to PKR 200,000. Nothing was invented and nothing was stolen — one busy month had been remembered as twelve.

Now you

Write what you would have said yesterday. Being wrong here costs nothing.