-97.74% is the change from 620 to 14
Calculation steps:
[( 14 - 620 ) ÷ 620] x 100 = -97.74%
Formula
Percentage change = [(14 - 620) / 620] x 100
Subtract the new number by the original number
14 - 620 = -606
-606 ÷ 620 = -0.9774193548387097
-0.9774193548387097 x 100 = -97.74%