-13.86% is the change from 837 to 721
Calculation steps:
[( 721 - 837 ) ÷ 837] x 100 = -13.86%
Formula
Percentage change = [(721 - 837) / 837] x 100
Subtract the new number by the original number
721 - 837 = -116
-116 ÷ 837 = -0.13859020310633213
-0.13859020310633213 x 100 = -13.86%