57.74% is the change from 620 to 978
Calculation steps:
[( 978 - 620 ) ÷ 620] x 100 = 57.74%
Formula
Percentage change = [(978 - 620) / 620] x 100
Subtract the new number by the original number
978 - 620 = 358
358 ÷ 620 = 0.5774193548387097
0.5774193548387097 x 100 = 57.74%