-97.16% is the change from 739 to 21
Calculation steps:
[( 21 - 739 ) ÷ 739] x 100 = -97.16%
Formula
Percentage change = [(21 - 739) / 739] x 100
Subtract the new number by the original number
21 - 739 = -718
-718 ÷ 739 = -0.9715832205683356
-0.9715832205683356 x 100 = -97.16%