-82.24% is the change from 687 to 122
Calculation steps:
[( 122 - 687 ) ÷ 687] x 100 = -82.24%
Formula
Percentage change = [(122 - 687) / 687] x 100
Subtract the new number by the original number
122 - 687 = -565
-565 ÷ 687 = -0.8224163027656477
-0.8224163027656477 x 100 = -82.24%