3.71% is the change from 593 to 615
Calculation steps:
[( 615 - 593 ) ÷ 593] x 100 = 3.71%
Formula
Percentage change = [(615 - 593) / 593] x 100
Subtract the new number by the original number
615 - 593 = 22
22 ÷ 593 = 0.03709949409780776
0.03709949409780776 x 100 = 3.71%