-66.26% is the change from 812 to 274
Calculation steps:
[( 274 - 812 ) ÷ 812] x 100 = -66.26%
Formula
Percentage change = [(274 - 812) / 812] x 100
Subtract the new number by the original number
274 - 812 = -538
-538 ÷ 812 = -0.6625615763546798
-0.6625615763546798 x 100 = -66.26%