-64.77% is the change from 687 to 242
Calculation steps:
[( 242 - 687 ) ÷ 687] x 100 = -64.77%
Formula
Percentage change = [(242 - 687) / 687] x 100
Subtract the new number by the original number
242 - 687 = -445
-445 ÷ 687 = -0.6477438136826783
-0.6477438136826783 x 100 = -64.77%