-68.23% is the change from 812 to 258
Calculation steps:
[( 258 - 812 ) ÷ 812] x 100 = -68.23%
Formula
Percentage change = [(258 - 812) / 812] x 100
Subtract the new number by the original number
258 - 812 = -554
-554 ÷ 812 = -0.6822660098522167
-0.6822660098522167 x 100 = -68.23%