-24.29% is the change from 848 to 642
Calculation steps:
[( 642 - 848 ) ÷ 848] x 100 = -24.29%
Formula
Percentage change = [(642 - 848) / 848] x 100
Subtract the new number by the original number
642 - 848 = -206
-206 ÷ 848 = -0.2429245283018868
-0.2429245283018868 x 100 = -24.29%