Quick arithmetic — percentage of, percentage change, and discounted price · useful for GST, TDS, margins and growth rates
The Percentage & Discount Calculator handles three common percentage computations: (1) X% of Y — finds what a given percentage of a number is (e.g. 18% GST on ₹1,00,000); (2) Percentage change from A to B — computes growth or decline % between two values (e.g. revenue growth); and (3) Discounted price — finds the final price after applying a discount % on MRP. Useful for GST calculations, TDS percentages, exam scores, sales discounts, and financial ratio analysis.
How do I find what percentage X is of Y?
Use 'X% of Y' mode. Example: 18% of ₹50,000 = ₹9,000. Or use 'Percentage change' mode with 0 as A and the value as B to get 100%.
How is percentage change calculated?
Percentage Change = ((New Value − Old Value) / Old Value) × 100. For example, revenue from ₹50L to ₹65L = (15/50) × 100 = 30% growth.
How do I calculate the base price from GST-inclusive price?
If the GST-inclusive price is ₹1,180 and GST rate is 18%, use 'Discounted price' mode: set Discount% as the effective reduction — or use our dedicated GST Invoice Generator for exact CGST/SGST split.
What is TDS rate and how do I calculate TDS amount?
Use 'X% of Y' mode. Example: TDS u/s 194J at 10% on professional fee of ₹50,000 = 10% of 50,000 = ₹5,000.