-66.01% is the change from 812 to 276
Calculation steps:
[( 276 - 812 ) ÷ 812] x 100 = -66.01%
Formula
Percentage change = [(276 - 812) / 812] x 100
Subtract the new number by the original number
276 - 812 = -536
-536 ÷ 812 = -0.6600985221674877
-0.6600985221674877 x 100 = -66.01%