-77.17% is the change from 657 to 150
Calculation steps:
[( 150 - 657 ) ÷ 657] x 100 = -77.17%
Formula
Percentage change = [(150 - 657) / 657] x 100
Subtract the new number by the original number
150 - 657 = -507
-507 ÷ 657 = -0.771689497716895
-0.771689497716895 x 100 = -77.17%