Final answer:
To compare the DEWA/SEWA bill amounts for the last three months with March'20 and find the percentage change, calculate the difference between the amounts and use the formula (difference / March'20 amount) x 100. Repeat for each month to determine the increase, decrease, or no change.
Step-by-step explanation:
To find the percentage change in the DEWA/SEWA bill amounts for the last three months compared to March'20, you need to follow these steps:
- Calculate the difference in bill amounts between April, May, June and March'20.
- Divide the difference by the bill amount in March'20.
- Multiply the result by 100 to get the percentage change.
For example, if the bill amount in March'20 is AED 500 and the bill amounts for April, May, and June are AED 600, AED 550, and AED 450 respectively, the percentage change for April can be calculated as follows:
Step 1: Difference = AED 600 - AED 500 = AED 100
Step 2: Percentage change = (AED 100 / AED 500) x 100 = 20%
Repeat the same steps for May and June to find the percentage changes for those months as well. This will allow you to compare the bill amounts and determine if there was an increase, decrease, or no change.