-87.69% is the change from 739 to 91
Calculation steps:
[( 91 - 739 ) ÷ 739] x 100 = -87.69%
Formula
Percentage change = [(91 - 739) / 739] x 100
Subtract the new number by the original number
91 - 739 = -648
-648 ÷ 739 = -0.8768606224627875
-0.8768606224627875 x 100 = -87.69%