-83.47% is the change from 623 to 103
Calculation steps:
[( 103 - 623 ) ÷ 623] x 100 = -83.47%
Formula
Percentage change = [(103 - 623) / 623] x 100
Subtract the new number by the original number
103 - 623 = -520
-520 ÷ 623 = -0.8346709470304976
-0.8346709470304976 x 100 = -83.47%