-51.22% is the change from 697 to 340
Calculation steps:
[( 340 - 697 ) ÷ 697] x 100 = -51.22%
Formula
Percentage change = [(340 - 697) / 697] x 100
Subtract the new number by the original number
340 - 697 = -357
-357 ÷ 697 = -0.5121951219512195
-0.5121951219512195 x 100 = -51.22%