-4.05% is the change from 865 to 830
Calculation steps:
[( 830 - 865 ) ÷ 865] x 100 = -4.05%
Formula
Percentage change = [(830 - 865) / 865] x 100
Subtract the new number by the original number
830 - 865 = -35
-35 ÷ 865 = -0.04046242774566474
-0.04046242774566474 x 100 = -4.05%