-61.66% is the change from 673 to 258
Calculation steps:
[( 258 - 673 ) ÷ 673] x 100 = -61.66%
Formula
Percentage change = [(258 - 673) / 673] x 100
Subtract the new number by the original number
258 - 673 = -415
-415 ÷ 673 = -0.6166419019316494
-0.6166419019316494 x 100 = -61.66%