123.65% is the change from 389 to 870
Calculation steps:
[( 870 - 389 ) ÷ 389] x 100 = 123.65%
Formula
Percentage change = [(870 - 389) / 389] x 100
Subtract the new number by the original number
870 - 389 = 481
481 ÷ 389 = 1.236503856041131
1.236503856041131 x 100 = 123.65%