-2.55% is the change from 824 to 803
Calculation steps:
[( 803 - 824 ) ÷ 824] x 100 = -2.55%
Formula
Percentage change = [(803 - 824) / 824] x 100
Subtract the new number by the original number
803 - 824 = -21
-21 ÷ 824 = -0.025485436893203883
-0.025485436893203883 x 100 = -2.55%