128.95% is the change from 380 to 870
Calculation steps:
[( 870 - 380 ) ÷ 380] x 100 = 128.95%
Formula
Percentage change = [(870 - 380) / 380] x 100
Subtract the new number by the original number
870 - 380 = 490
490 ÷ 380 = 1.2894736842105263
1.2894736842105263 x 100 = 128.95%