70.55% is the change from 326 to 556
Calculation steps:
[( 556 - 326 ) ÷ 326] x 100 = 70.55%
Formula
Percentage change = [(556 - 326) / 326] x 100
Subtract the new number by the original number
556 - 326 = 230
230 ÷ 326 = 0.7055214723926381
0.7055214723926381 x 100 = 70.55%