-86.44% is the change from 730 to 99
Calculation steps:
[( 99 - 730 ) ÷ 730] x 100 = -86.44%
Formula
Percentage change = [(99 - 730) / 730] x 100
Subtract the new number by the original number
99 - 730 = -631
-631 ÷ 730 = -0.8643835616438356
-0.8643835616438356 x 100 = -86.44%