74.35% is the change from 499 to 870
Calculation steps:
[( 870 - 499 ) ÷ 499] x 100 = 74.35%
Formula
Percentage change = [(870 - 499) / 499] x 100
Subtract the new number by the original number
870 - 499 = 371
371 ÷ 499 = 0.7434869739478958
0.7434869739478958 x 100 = 74.35%