-93.98% is the change from 847 to 51
Calculation steps:
[( 51 - 847 ) ÷ 847] x 100 = -93.98%
Formula
Percentage change = [(51 - 847) / 847] x 100
Subtract the new number by the original number
51 - 847 = -796
-796 ÷ 847 = -0.9397874852420307
-0.9397874852420307 x 100 = -93.98%