55% is the change from 620 to 961
Calculation steps:
[( 961 - 620 ) ÷ 620] x 100 = 55%
Formula
Percentage change = [(961 - 620) / 620] x 100
Subtract the new number by the original number
961 - 620 = 341
341 ÷ 620 = 0.55
0.55 x 100 = 55%
Example