-83.25% is the change from 621 to 104
Calculation steps:
[( 104 - 621 ) ÷ 621] x 100 = -83.25%
Formula
Percentage change = [(104 - 621) / 621] x 100
Subtract the new number by the original number
104 - 621 = -517
-517 ÷ 621 = -0.8325281803542673
-0.8325281803542673 x 100 = -83.25%