-71.01% is the change from 990 to 287
Calculation steps:
[( 287 - 990 ) ÷ 990] x 100 = -71.01%
Formula
Percentage change = [(287 - 990) / 990] x 100
Subtract the new number by the original number
287 - 990 = -703
-703 ÷ 990 = -0.7101010101010101
-0.7101010101010101 x 100 = -71.01%