38.54% is the change from 628 to 870
Calculation steps:
[( 870 - 628 ) ÷ 628] x 100 = 38.54%
Formula
Percentage change = [(870 - 628) / 628] x 100
Subtract the new number by the original number
870 - 628 = 242
242 ÷ 628 = 0.3853503184713376
0.3853503184713376 x 100 = 38.54%