15.38% is the change from 533 to 615
Calculation steps:
[( 615 - 533 ) ÷ 533] x 100 = 15.38%
Formula
Percentage change = [(615 - 533) / 533] x 100
Subtract the new number by the original number
615 - 533 = 82
82 ÷ 533 = 0.15384615384615385
0.15384615384615385 x 100 = 15.38%