-97.36% is the change from 683 to 18
Calculation steps:
[( 18 - 683 ) ÷ 683] x 100 = -97.36%
Formula
Percentage change = [(18 - 683) / 683] x 100
Subtract the new number by the original number
18 - 683 = -665
-665 ÷ 683 = -0.9736456808199122
-0.9736456808199122 x 100 = -97.36%