861.43% is the change from 70 to 673
Calculation steps:
[( 673 - 70 ) ÷ 70] x 100 = 861.43%
Formula
Percentage change = [(673 - 70) / 70] x 100
Subtract the new number by the original number
673 - 70 = 603
603 ÷ 70 = 8.614285714285714
8.614285714285714 x 100 = 861.43%