-30.92% is the change from 996 to 688
Calculation steps:
[( 688 - 996 ) ÷ 996] x 100 = -30.92%
Formula
Percentage change = [(688 - 996) / 996] x 100
Subtract the new number by the original number
688 - 996 = -308
-308 ÷ 996 = -0.3092369477911647
-0.3092369477911647 x 100 = -30.92%