Percent-O

Numerical Reasoning: Master the Math Behind the Interview. Infinite, realistic practice with percentages, ratios & currency.  Spot traps & get ranked.

Master the data interpretation skills needed for corporate aptitude tests. Percent-O provides infinite, realistic practice for numerical reasoning exams.

Infinite Practice Procedurally generated exam sessions ensure you never see the same question twice. Memorization won't work; you must master the logic.

Realistic Data Analyze complex tables including Revenue, Headcount, and Exchange Rates under strict time limits.

Trap Training Learn to identify specific "distractor" answers designed to trick you, including:

Denominator Errors: Using the wrong base year.

Unit Errors: Missing the "thousands" multiplier.

Data Sufficiency: Recognizing when an answer "Cannot be calculated."

Professional Scoring Receive a Stanine Score (1–9) and a breakdown of your accuracy and speed, matching the grading standards used by employers.