836.62% is the change from 71 to 665
Calculation steps:
[( 665 - 71 ) ÷ 71] x 100 = 836.62%
Formula
Percentage change = [(665 - 71) / 71] x 100
Subtract the new number by the original number
665 - 71 = 594
594 ÷ 71 = 8.366197183098592
8.366197183098592 x 100 = 836.62%