3.73% is the change from 536 to 556
Calculation steps:
[( 556 - 536 ) ÷ 536] x 100 = 3.73%
Formula
Percentage change = [(556 - 536) / 536] x 100
Subtract the new number by the original number
556 - 536 = 20
20 ÷ 536 = 0.03731343283582089
0.03731343283582089 x 100 = 3.73%