37.28% is the change from 448 to 615
Calculation steps:
[( 615 - 448 ) ÷ 448] x 100 = 37.28%
Formula
Percentage change = [(615 - 448) / 448] x 100
Subtract the new number by the original number
615 - 448 = 167
167 ÷ 448 = 0.37276785714285715
0.37276785714285715 x 100 = 37.28%