-94.81% is the change from 289 to 15
Calculation steps:
[( 15 - 289 ) ÷ 289] x 100 = -94.81%
Formula
Percentage change = [(15 - 289) / 289] x 100
Subtract the new number by the original number
15 - 289 = -274
-274 ÷ 289 = -0.9480968858131488
-0.9480968858131488 x 100 = -94.81%