-99.36% is the change from 624 to 4
Calculation steps:
[( 4 - 624 ) ÷ 624] x 100 = -99.36%
Formula
Percentage change = [(4 - 624) / 624] x 100
Subtract the new number by the original number
4 - 624 = -620
-620 ÷ 624 = -0.9935897435897436
-0.9935897435897436 x 100 = -99.36%