-26.91% is the change from 431 to 315
Calculation steps:
[( 315 - 431 ) ÷ 431] x 100 = -26.91%
Formula
Percentage change = [(315 - 431) / 431] x 100
Subtract the new number by the original number
315 - 431 = -116
-116 ÷ 431 = -0.2691415313225058
-0.2691415313225058 x 100 = -26.91%