-69.33% is the change from 812 to 249
Calculation steps:
[( 249 - 812 ) ÷ 812] x 100 = -69.33%
Formula
Percentage change = [(249 - 812) / 812] x 100
Subtract the new number by the original number
249 - 812 = -563
-563 ÷ 812 = -0.6933497536945813
-0.6933497536945813 x 100 = -69.33%