64.46% is the change from 377 to 620
Calculation steps:
[( 620 - 377 ) ÷ 377] x 100 = 64.46%
Formula
Percentage change = [(620 - 377) / 377] x 100
Subtract the new number by the original number
620 - 377 = 243
243 ÷ 377 = 0.6445623342175066
0.6445623342175066 x 100 = 64.46%