255.49% is the change from 173 to 615
Calculation steps:
[( 615 - 173 ) ÷ 173] x 100 = 255.49%
Formula
Percentage change = [(615 - 173) / 173] x 100
Subtract the new number by the original number
615 - 173 = 442
442 ÷ 173 = 2.554913294797688
2.554913294797688 x 100 = 255.49%