-63.92% is the change from 848 to 306
Calculation steps:
[( 306 - 848 ) ÷ 848] x 100 = -63.92%
Formula
Percentage change = [(306 - 848) / 848] x 100
Subtract the new number by the original number
306 - 848 = -542
-542 ÷ 848 = -0.6391509433962265
-0.6391509433962265 x 100 = -63.92%