-71.91% is the change from 687 to 193
Calculation steps:
[( 193 - 687 ) ÷ 687] x 100 = -71.91%
Formula
Percentage change = [(193 - 687) / 687] x 100
Subtract the new number by the original number
193 - 687 = -494
-494 ÷ 687 = -0.7190684133915575
-0.7190684133915575 x 100 = -71.91%