-27.12% is the change from 697 to 508
Calculation steps:
[( 508 - 697 ) ÷ 697] x 100 = -27.12%
Formula
Percentage change = [(508 - 697) / 697] x 100
Subtract the new number by the original number
508 - 697 = -189
-189 ÷ 697 = -0.27116212338593976
-0.27116212338593976 x 100 = -27.12%