-83.15% is the change from 623 to 105
Calculation steps:
[( 105 - 623 ) ÷ 623] x 100 = -83.15%
Formula
Percentage change = [(105 - 623) / 623] x 100
Subtract the new number by the original number
105 - 623 = -518
-518 ÷ 623 = -0.8314606741573034
-0.8314606741573034 x 100 = -83.15%