843.66% is the change from 71 to 670
Calculation steps:
[( 670 - 71 ) ÷ 71] x 100 = 843.66%
Formula
Percentage change = [(670 - 71) / 71] x 100
Subtract the new number by the original number
670 - 71 = 599
599 ÷ 71 = 8.43661971830986
8.43661971830986 x 100 = 843.66%