55.7% is the change from 623 to 970
Calculation steps:
[( 970 - 623 ) ÷ 623] x 100 = 55.7%
Formula
Percentage change = [(970 - 623) / 623] x 100
Subtract the new number by the original number
970 - 623 = 347
347 ÷ 623 = 0.5569823434991974
0.5569823434991974 x 100 = 55.7%