-2.13% is the change from 847 to 829
Calculation steps:
[( 829 - 847 ) ÷ 847] x 100 = -2.13%
Formula
Percentage change = [(829 - 847) / 847] x 100
Subtract the new number by the original number
829 - 847 = -18
-18 ÷ 847 = -0.021251475796930343
-0.021251475796930343 x 100 = -2.13%