-45.95% is the change from 457 to 247
Calculation steps:
[( 247 - 457 ) ÷ 457] x 100 = -45.95%
Formula
Percentage change = [(247 - 457) / 457] x 100
Subtract the new number by the original number
247 - 457 = -210
-210 ÷ 457 = -0.45951859956236324
-0.45951859956236324 x 100 = -45.95%