-30.79% is the change from 997 to 690
Calculation steps:
[( 690 - 997 ) ÷ 997] x 100 = -30.79%
Formula
Percentage change = [(690 - 997) / 997] x 100
Subtract the new number by the original number
690 - 997 = -307
-307 ÷ 997 = -0.30792377131394183
-0.30792377131394183 x 100 = -30.79%