71.26% is the change from 508 to 870
Calculation steps:
[( 870 - 508 ) ÷ 508] x 100 = 71.26%
Formula
Percentage change = [(870 - 508) / 508] x 100
Subtract the new number by the original number
870 - 508 = 362
362 ÷ 508 = 0.7125984251968503
0.7125984251968503 x 100 = 71.26%