-30.89% is the change from 994 to 687
Calculation steps:
[( 687 - 994 ) ÷ 994] x 100 = -30.89%
Formula
Percentage change = [(687 - 994) / 994] x 100
Subtract the new number by the original number
687 - 994 = -307
-307 ÷ 994 = -0.30885311871227367
-0.30885311871227367 x 100 = -30.89%