-94.25% is the change from 261 to 15
Calculation steps:
[( 15 - 261 ) ÷ 261] x 100 = -94.25%
Formula
Percentage change = [(15 - 261) / 261] x 100
Subtract the new number by the original number
15 - 261 = -246
-246 ÷ 261 = -0.9425287356321839
-0.9425287356321839 x 100 = -94.25%