-23.49% is the change from 847 to 648
Calculation steps:
[( 648 - 847 ) ÷ 847] x 100 = -23.49%
Formula
Percentage change = [(648 - 847) / 847] x 100
Subtract the new number by the original number
648 - 847 = -199
-199 ÷ 847 = -0.23494687131050768
-0.23494687131050768 x 100 = -23.49%