1255.1% is the change from 49 to 664
Calculation steps:
[( 664 - 49 ) ÷ 49] x 100 = 1255.1%
Formula
Percentage change = [(664 - 49) / 49] x 100
Subtract the new number by the original number
664 - 49 = 615
615 ÷ 49 = 12.551020408163266
12.551020408163266 x 100 = 1255.1%