-66.5% is the change from 824 to 276
Calculation steps:
[( 276 - 824 ) ÷ 824] x 100 = -66.5%
Formula
Percentage change = [(276 - 824) / 824] x 100
Subtract the new number by the original number
276 - 824 = -548
-548 ÷ 824 = -0.6650485436893204
-0.6650485436893204 x 100 = -66.5%