-50.81% is the change from 683 to 336
Calculation steps:
[( 336 - 683 ) ÷ 683] x 100 = -50.81%
Formula
Percentage change = [(336 - 683) / 683] x 100
Subtract the new number by the original number
336 - 683 = -347
-347 ÷ 683 = -0.5080527086383602
-0.5080527086383602 x 100 = -50.81%