-66.47% is the change from 847 to 284
Calculation steps:
[( 284 - 847 ) ÷ 847] x 100 = -66.47%
Formula
Percentage change = [(284 - 847) / 847] x 100
Subtract the new number by the original number
284 - 847 = -563
-563 ÷ 847 = -0.6646989374262101
-0.6646989374262101 x 100 = -66.47%