-55.8% is the change from 647 to 286
Calculation steps:
[( 286 - 647 ) ÷ 647] x 100 = -55.8%
Formula
Percentage change = [(286 - 647) / 647] x 100
Subtract the new number by the original number
286 - 647 = -361
-361 ÷ 647 = -0.5579598145285936
-0.5579598145285936 x 100 = -55.8%