-72.3% is the change from 906 to 251
Calculation steps:
[( 251 - 906 ) ÷ 906] x 100 = -72.3%
Formula
Percentage change = [(251 - 906) / 906] x 100
Subtract the new number by the original number
251 - 906 = -655
-655 ÷ 906 = -0.7229580573951435
-0.7229580573951435 x 100 = -72.3%