-88.51% is the change from 705 to 81
Calculation steps:
[( 81 - 705 ) ÷ 705] x 100 = -88.51%
Formula
Percentage change = [(81 - 705) / 705] x 100
Subtract the new number by the original number
81 - 705 = -624
-624 ÷ 705 = -0.8851063829787233
-0.8851063829787233 x 100 = -88.51%