-39.31% is the change from 407 to 247
Calculation steps:
[( 247 - 407 ) ÷ 407] x 100 = -39.31%
Formula
Percentage change = [(247 - 407) / 407] x 100
Subtract the new number by the original number
247 - 407 = -160
-160 ÷ 407 = -0.3931203931203931
-0.3931203931203931 x 100 = -39.31%