56.82% is the change from 623 to 977
Calculation steps:
[( 977 - 623 ) ÷ 623] x 100 = 56.82%
Formula
Percentage change = [(977 - 623) / 623] x 100
Subtract the new number by the original number
977 - 623 = 354
354 ÷ 623 = 0.5682182985553772
0.5682182985553772 x 100 = 56.82%