80.77% is the change from 390 to 705
Calculation steps:
[( 705 - 390 ) ÷ 390] x 100 = 80.77%
Formula
Percentage change = [(705 - 390) / 390] x 100
Subtract the new number by the original number
705 - 390 = 315
315 ÷ 390 = 0.8076923076923077
0.8076923076923077 x 100 = 80.77%