-97.7% is the change from 261 to 6
Calculation steps:
[( 6 - 261 ) ÷ 261] x 100 = -97.7%
Formula
Percentage change = [(6 - 261) / 261] x 100
Subtract the new number by the original number
6 - 261 = -255
-255 ÷ 261 = -0.9770114942528736
-0.9770114942528736 x 100 = -97.7%