-29.98% is the change from 824 to 577
Calculation steps:
[( 577 - 824 ) ÷ 824] x 100 = -29.98%
Formula
Percentage change = [(577 - 824) / 824] x 100
Subtract the new number by the original number
577 - 824 = -247
-247 ÷ 824 = -0.29975728155339804
-0.29975728155339804 x 100 = -29.98%