74.7% is the change from 498 to 870
Calculation steps:
[( 870 - 498 ) ÷ 498] x 100 = 74.7%
Formula
Percentage change = [(870 - 498) / 498] x 100
Subtract the new number by the original number
870 - 498 = 372
372 ÷ 498 = 0.7469879518072289
0.7469879518072289 x 100 = 74.7%