-69.75% is the change from 909 to 275
Calculation steps:
[( 275 - 909 ) ÷ 909] x 100 = -69.75%
Formula
Percentage change = [(275 - 909) / 909] x 100
Subtract the new number by the original number
275 - 909 = -634
-634 ÷ 909 = -0.6974697469746974
-0.6974697469746974 x 100 = -69.75%