-12.89% is the change from 830 to 723
Calculation steps:
[( 723 - 830 ) ÷ 830] x 100 = -12.89%
Formula
Percentage change = [(723 - 830) / 830] x 100
Subtract the new number by the original number
723 - 830 = -107
-107 ÷ 830 = -0.12891566265060242
-0.12891566265060242 x 100 = -12.89%