173.58% is the change from 318 to 870
Calculation steps:
[( 870 - 318 ) ÷ 318] x 100 = 173.58%
Formula
Percentage change = [(870 - 318) / 318] x 100
Subtract the new number by the original number
870 - 318 = 552
552 ÷ 318 = 1.7358490566037736
1.7358490566037736 x 100 = 173.58%