63.16% is the change from 380 to 620
Calculation steps:
[( 620 - 380 ) ÷ 380] x 100 = 63.16%
Formula
Percentage change = [(620 - 380) / 380] x 100
Subtract the new number by the original number
620 - 380 = 240
240 ÷ 380 = 0.631578947368421
0.631578947368421 x 100 = 63.16%