-84.65% is the change from 990 to 152
Calculation steps:
[( 152 - 990 ) ÷ 990] x 100 = -84.65%
Formula
Percentage change = [(152 - 990) / 990] x 100
Subtract the new number by the original number
152 - 990 = -838
-838 ÷ 990 = -0.8464646464646465
-0.8464646464646465 x 100 = -84.65%