-79.72% is the change from 784 to 159
Calculation steps:
[( 159 - 784 ) ÷ 784] x 100 = -79.72%
Formula
Percentage change = [(159 - 784) / 784] x 100
Subtract the new number by the original number
159 - 784 = -625
-625 ÷ 784 = -0.7971938775510204
-0.7971938775510204 x 100 = -79.72%