93.4% is the change from 318 to 615
Calculation steps:
[( 615 - 318 ) ÷ 318] x 100 = 93.4%
Formula
Percentage change = [(615 - 318) / 318] x 100
Subtract the new number by the original number
615 - 318 = 297
297 ÷ 318 = 0.9339622641509434
0.9339622641509434 x 100 = 93.4%