-62% is the change from 679 to 258
Calculation steps:
[( 258 - 679 ) ÷ 679] x 100 = -62%
Formula
Percentage change = [(258 - 679) / 679] x 100
Subtract the new number by the original number
258 - 679 = -421
-421 ÷ 679 = -0.6200294550810015
-0.6200294550810015 x 100 = -62%