-45.2% is the change from 250 to 137
Calculation steps:
[( 137 - 250 ) ÷ 250] x 100 = -45.2%
Formula
Percentage change = [(137 - 250) / 250] x 100
Subtract the new number by the original number
137 - 250 = -113
-113 ÷ 250 = -0.452
-0.452 x 100 = -45.2%