56.77% is the change from 620 to 972
Calculation steps:
[( 972 - 620 ) ÷ 620] x 100 = 56.77%
Formula
Percentage change = [(972 - 620) / 620] x 100
Subtract the new number by the original number
972 - 620 = 352
352 ÷ 620 = 0.567741935483871
0.567741935483871 x 100 = 56.77%