54.76% is the change from 630 to 975
Calculation steps:
[( 975 - 630 ) ÷ 630] x 100 = 54.76%
Formula
Percentage change = [(975 - 630) / 630] x 100
Subtract the new number by the original number
975 - 630 = 345
345 ÷ 630 = 0.5476190476190477
0.5476190476190477 x 100 = 54.76%