-49.93% is the change from 683 to 342
Calculation steps:
[( 342 - 683 ) ÷ 683] x 100 = -49.93%
Formula
Percentage change = [(342 - 683) / 683] x 100
Subtract the new number by the original number
342 - 683 = -341
-341 ÷ 683 = -0.4992679355783309
-0.4992679355783309 x 100 = -49.93%