-66.23% is the change from 847 to 286
Calculation steps:
[( 286 - 847 ) ÷ 847] x 100 = -66.23%
Formula
Percentage change = [(286 - 847) / 847] x 100
Subtract the new number by the original number
286 - 847 = -561
-561 ÷ 847 = -0.6623376623376623
-0.6623376623376623 x 100 = -66.23%