80.5% is the change from 482 to 870
Calculation steps:
[( 870 - 482 ) ÷ 482] x 100 = 80.5%
Formula
Percentage change = [(870 - 482) / 482] x 100
Subtract the new number by the original number
870 - 482 = 388
388 ÷ 482 = 0.8049792531120332
0.8049792531120332 x 100 = 80.5%