-20.2% is the change from 683 to 545
Calculation steps:
[( 545 - 683 ) ÷ 683] x 100 = -20.2%
Formula
Percentage change = [(545 - 683) / 683] x 100
Subtract the new number by the original number
545 - 683 = -138
-138 ÷ 683 = -0.2020497803806735
-0.2020497803806735 x 100 = -20.2%
Example