-45.63% is the change from 480 to 261
Calculation steps:
[( 261 - 480 ) ÷ 480] x 100 = -45.63%
Formula
Percentage change = [(261 - 480) / 480] x 100
Subtract the new number by the original number
261 - 480 = -219
-219 ÷ 480 = -0.45625
-0.45625 x 100 = -45.63%