-97.21% is the change from 501 to 14
Calculation steps:
[( 14 - 501 ) ÷ 501] x 100 = -97.21%
Formula
Percentage change = [(14 - 501) / 501] x 100
Subtract the new number by the original number
14 - 501 = -487
-487 ÷ 501 = -0.9720558882235529
-0.9720558882235529 x 100 = -97.21%