-8.67% is the change from 830 to 758
Calculation steps:
[( 758 - 830 ) ÷ 830] x 100 = -8.67%
Formula
Percentage change = [(758 - 830) / 830] x 100
Subtract the new number by the original number
758 - 830 = -72
-72 ÷ 830 = -0.08674698795180723
-0.08674698795180723 x 100 = -8.67%