-29.25% is the change from 971 to 687
Calculation steps:
[( 687 - 971 ) ÷ 971] x 100 = -29.25%
Formula
Percentage change = [(687 - 971) / 971] x 100
Subtract the new number by the original number
687 - 971 = -284
-284 ÷ 971 = -0.2924819773429454
-0.2924819773429454 x 100 = -29.25%