-2.49% is the change from 804 to 784
Calculation steps:
[( 784 - 804 ) ÷ 804] x 100 = -2.49%
Formula
Percentage change = [(784 - 804) / 804] x 100
Subtract the new number by the original number
784 - 804 = -20
-20 ÷ 804 = -0.024875621890547265
-0.024875621890547265 x 100 = -2.49%