-77.63% is the change from 657 to 147
Calculation steps:
[( 147 - 657 ) ÷ 657] x 100 = -77.63%
Formula
Percentage change = [(147 - 657) / 657] x 100
Subtract the new number by the original number
147 - 657 = -510
-510 ÷ 657 = -0.776255707762557
-0.776255707762557 x 100 = -77.63%