20.45% is the change from 313 to 377
Calculation steps:
[( 377 - 313 ) ÷ 313] x 100 = 20.45%
Formula
Percentage change = [(377 - 313) / 313] x 100
Subtract the new number by the original number
377 - 313 = 64
64 ÷ 313 = 0.20447284345047922
0.20447284345047922 x 100 = 20.45%