-89.44% is the change from 824 to 87
Calculation steps:
[( 87 - 824 ) ÷ 824] x 100 = -89.44%
Formula
Percentage change = [(87 - 824) / 824] x 100
Subtract the new number by the original number
87 - 824 = -737
-737 ÷ 824 = -0.8944174757281553
-0.8944174757281553 x 100 = -89.44%