52.93% is the change from 648 to 991
Calculation steps:
[( 991 - 648 ) ÷ 648] x 100 = 52.93%
Formula
Percentage change = [(991 - 648) / 648] x 100
Subtract the new number by the original number
991 - 648 = 343
343 ÷ 648 = 0.529320987654321
0.529320987654321 x 100 = 52.93%