53.42% is the change from 644 to 988
Calculation steps:
[( 988 - 644 ) ÷ 644] x 100 = 53.42%
Formula
Percentage change = [(988 - 644) / 644] x 100
Subtract the new number by the original number
988 - 644 = 344
344 ÷ 644 = 0.5341614906832298
0.5341614906832298 x 100 = 53.42%