-87.37% is the change from 784 to 99
Calculation steps:
[( 99 - 784 ) ÷ 784] x 100 = -87.37%
Formula
Percentage change = [(99 - 784) / 784] x 100
Subtract the new number by the original number
99 - 784 = -685
-685 ÷ 784 = -0.8737244897959183
-0.8737244897959183 x 100 = -87.37%