-6.15% is the change from 683 to 641
Calculation steps:
[( 641 - 683 ) ÷ 683] x 100 = -6.15%
Formula
Percentage change = [(641 - 683) / 683] x 100
Subtract the new number by the original number
641 - 683 = -42
-42 ÷ 683 = -0.06149341142020498
-0.06149341142020498 x 100 = -6.15%