34.87% is the change from 456 to 615
Calculation steps:
[( 615 - 456 ) ÷ 456] x 100 = 34.87%
Formula
Percentage change = [(615 - 456) / 456] x 100
Subtract the new number by the original number
615 - 456 = 159
159 ÷ 456 = 0.34868421052631576
0.34868421052631576 x 100 = 34.87%