1000% is the change from 61 to 671
Calculation steps:
[( 671 - 61 ) ÷ 61] x 100 = 1000%
Formula
Percentage change = [(671 - 61) / 61] x 100
Subtract the new number by the original number
671 - 61 = 610
610 ÷ 61 = 10
10 x 100 = 1000%
Example