-69% is the change from 987 to 306
Calculation steps:
[( 306 - 987 ) ÷ 987] x 100 = -69%
Formula
Percentage change = [(306 - 987) / 987] x 100
Subtract the new number by the original number
306 - 987 = -681
-681 ÷ 987 = -0.6899696048632219
-0.6899696048632219 x 100 = -69%