-77.43% is the change from 824 to 186
Calculation steps:
[( 186 - 824 ) ÷ 824] x 100 = -77.43%
Formula
Percentage change = [(186 - 824) / 824] x 100
Subtract the new number by the original number
186 - 824 = -638
-638 ÷ 824 = -0.7742718446601942
-0.7742718446601942 x 100 = -77.43%