-97.43% is the change from 623 to 16
Calculation steps:
[( 16 - 623 ) ÷ 623] x 100 = -97.43%
Formula
Percentage change = [(16 - 623) / 623] x 100
Subtract the new number by the original number
16 - 623 = -607
-607 ÷ 623 = -0.9743178170144462
-0.9743178170144462 x 100 = -97.43%