80.56% is the change from 216 to 390
Calculation steps:
[( 390 - 216 ) ÷ 216] x 100 = 80.56%
Formula
Percentage change = [(390 - 216) / 216] x 100
Subtract the new number by the original number
390 - 216 = 174
174 ÷ 216 = 0.8055555555555556
0.8055555555555556 x 100 = 80.56%