-52.51% is the change from 697 to 331
Calculation steps:
[( 331 - 697 ) ÷ 697] x 100 = -52.51%
Formula
Percentage change = [(331 - 697) / 697] x 100
Subtract the new number by the original number
331 - 697 = -366
-366 ÷ 697 = -0.5251076040172167
-0.5251076040172167 x 100 = -52.51%