71.16% is the change from 579 to 991
Calculation steps:
[( 991 - 579 ) ÷ 579] x 100 = 71.16%
Formula
Percentage change = [(991 - 579) / 579] x 100
Subtract the new number by the original number
991 - 579 = 412
412 ÷ 579 = 0.7115716753022453
0.7115716753022453 x 100 = 71.16%