839.44% is the change from 71 to 667
Calculation steps:
[( 667 - 71 ) ÷ 71] x 100 = 839.44%
Formula
Percentage change = [(667 - 71) / 71] x 100
Subtract the new number by the original number
667 - 71 = 596
596 ÷ 71 = 8.394366197183098
8.394366197183098 x 100 = 839.44%