-69.9% is the change from 824 to 248
Calculation steps:
[( 248 - 824 ) ÷ 824] x 100 = -69.9%
Formula
Percentage change = [(248 - 824) / 824] x 100
Subtract the new number by the original number
248 - 824 = -576
-576 ÷ 824 = -0.6990291262135923
-0.6990291262135923 x 100 = -69.9%