-92.53% is the change from 683 to 51
Calculation steps:
[( 51 - 683 ) ÷ 683] x 100 = -92.53%
Formula
Percentage change = [(51 - 683) / 683] x 100
Subtract the new number by the original number
51 - 683 = -632
-632 ÷ 683 = -0.9253294289897511
-0.9253294289897511 x 100 = -92.53%