-76.23% is the change from 631 to 150
Calculation steps:
[( 150 - 631 ) ÷ 631] x 100 = -76.23%
Formula
Percentage change = [(150 - 631) / 631] x 100
Subtract the new number by the original number
150 - 631 = -481
-481 ÷ 631 = -0.7622820919175911
-0.7622820919175911 x 100 = -76.23%