-61.22% is the change from 673 to 261
Calculation steps:
[( 261 - 673 ) ÷ 673] x 100 = -61.22%
Formula
Percentage change = [(261 - 673) / 673] x 100
Subtract the new number by the original number
261 - 673 = -412
-412 ÷ 673 = -0.612184249628529
-0.612184249628529 x 100 = -61.22%