-29.18% is the change from 970 to 687
Calculation steps:
[( 687 - 970 ) ÷ 970] x 100 = -29.18%
Formula
Percentage change = [(687 - 970) / 970] x 100
Subtract the new number by the original number
687 - 970 = -283
-283 ÷ 970 = -0.29175257731958765
-0.29175257731958765 x 100 = -29.18%