-88.38% is the change from 628 to 73
Calculation steps:
[( 73 - 628 ) ÷ 628] x 100 = -88.38%
Formula
Percentage change = [(73 - 628) / 628] x 100
Subtract the new number by the original number
73 - 628 = -555
-555 ÷ 628 = -0.8837579617834395
-0.8837579617834395 x 100 = -88.38%