106.15% is the change from 390 to 804
Calculation steps:
[( 804 - 390 ) ÷ 390] x 100 = 106.15%
Formula
Percentage change = [(804 - 390) / 390] x 100
Subtract the new number by the original number
804 - 390 = 414
414 ÷ 390 = 1.0615384615384615
1.0615384615384615 x 100 = 106.15%