111.34% is the change from 291 to 615
Calculation steps:
[( 615 - 291 ) ÷ 291] x 100 = 111.34%
Formula
Percentage change = [(615 - 291) / 291] x 100
Subtract the new number by the original number
615 - 291 = 324
324 ÷ 291 = 1.1134020618556701
1.1134020618556701 x 100 = 111.34%