-63.13% is the change from 697 to 257
Calculation steps:
[( 257 - 697 ) ÷ 697] x 100 = -63.13%
Formula
Percentage change = [(257 - 697) / 697] x 100
Subtract the new number by the original number
257 - 697 = -440
-440 ÷ 697 = -0.6312769010043041
-0.6312769010043041 x 100 = -63.13%