296.77% is the change from 155 to 615
Calculation steps:
[( 615 - 155 ) ÷ 155] x 100 = 296.77%
Formula
Percentage change = [(615 - 155) / 155] x 100
Subtract the new number by the original number
615 - 155 = 460
460 ÷ 155 = 2.967741935483871
2.967741935483871 x 100 = 296.77%