Percentage Calculator Tool-% app analytics for December 30

This application includes 30 types of percentage calculation, which can help you quickly solve various percentage - related problems in life and work, and the calculation results can be traced and managed. 3 calculation types: Basic calculation: percentage of value, percentage increase/decrease, conversion between percentage and decimal Advanced calculation: reverse calculation of original value, compound growth, profit margin, return on investment Practical scenarios: discounted price including tax, loan interest, statistics of grades/votes/market share, error rate, etc. Main functions: Quick calculation of daily percentage problems No network dependency, all calculations and records are stored locally. Automatic verification of input validity (e.g., prompt for non - numeric input). Supports two decimal places and handles complex calculations such as compound growth. History management: Automatically save each calculation result Support deleting a single record or clearing all at once Display calculation details (e.g., "Input: 100 | 10%, Result: 110") Real - time example guidance: Each calculation type is provided with example explanations (e.g., "Example: What is 100 increased by 10% → Result: 110") What can it do for you? Discounted price of goods (original price 100, 20% off = 80) Calculate profit margin (revenue 150, cost 100 = 33.33%) Return on investment (profit 50, cost 100 = 50%) And many more calculation scenarios