-67.24% is the change from 812 to 266
Calculation steps:
[( 266 - 812 ) ÷ 812] x 100 = -67.24%
Formula
Percentage change = [(266 - 812) / 812] x 100
Subtract the new number by the original number
266 - 812 = -546
-546 ÷ 812 = -0.6724137931034483
-0.6724137931034483 x 100 = -67.24%