-48.32% is the change from 505 to 261
Calculation steps:
[( 261 - 505 ) ÷ 505] x 100 = -48.32%
Formula
Percentage change = [(261 - 505) / 505] x 100
Subtract the new number by the original number
261 - 505 = -244
-244 ÷ 505 = -0.48316831683168315
-0.48316831683168315 x 100 = -48.32%