348.91% is the change from 137 to 615
Calculation steps:
[( 615 - 137 ) ÷ 137] x 100 = 348.91%
Formula
Percentage change = [(615 - 137) / 137] x 100
Subtract the new number by the original number
615 - 137 = 478
478 ÷ 137 = 3.489051094890511
3.489051094890511 x 100 = 348.91%