54.84% is the change from 620 to 960
Calculation steps:
[( 960 - 620 ) ÷ 620] x 100 = 54.84%
Formula
Percentage change = [(960 - 620) / 620] x 100
Subtract the new number by the original number
960 - 620 = 340
340 ÷ 620 = 0.5483870967741935
0.5483870967741935 x 100 = 54.84%