52.8% is the change from 644 to 984
Calculation steps:
[( 984 - 644 ) ÷ 644] x 100 = 52.8%
Formula
Percentage change = [(984 - 644) / 644] x 100
Subtract the new number by the original number
984 - 644 = 340
340 ÷ 644 = 0.5279503105590062
0.5279503105590062 x 100 = 52.8%