1000% is the change from 25 to 275
Calculation steps:
[( 275 - 25 ) ÷ 25] x 100 = 1000%
Formula
Percentage change = [(275 - 25) / 25] x 100
Subtract the new number by the original number
275 - 25 = 250
250 ÷ 25 = 10
10 x 100 = 1000%
Example