54% is the change from 637 to 981
Calculation steps:
[( 981 - 637 ) ÷ 637] x 100 = 54%
Formula
Percentage change = [(981 - 637) / 637] x 100
Subtract the new number by the original number
981 - 637 = 344
344 ÷ 637 = 0.5400313971742543
0.5400313971742543 x 100 = 54%