-3.54% is the change from 848 to 818
Calculation steps:
[( 818 - 848 ) ÷ 848] x 100 = -3.54%
Formula
Percentage change = [(818 - 848) / 848] x 100
Subtract the new number by the original number
818 - 848 = -30
-30 ÷ 848 = -0.03537735849056604
-0.03537735849056604 x 100 = -3.54%