21.35% is the change from 623 to 756
Calculation steps:
[( 756 - 623 ) ÷ 623] x 100 = 21.35%
Formula
Percentage change = [(756 - 623) / 623] x 100
Subtract the new number by the original number
756 - 623 = 133
133 ÷ 623 = 0.21348314606741572
0.21348314606741572 x 100 = 21.35%