261.11% is the change from 108 to 390
Calculation steps:
[( 390 - 108 ) ÷ 108] x 100 = 261.11%
Formula
Percentage change = [(390 - 108) / 108] x 100
Subtract the new number by the original number
390 - 108 = 282
282 ÷ 108 = 2.611111111111111
2.611111111111111 x 100 = 261.11%