-77.38% is the change from 663 to 150
Calculation steps:
[( 150 - 663 ) ÷ 663] x 100 = -77.38%
Formula
Percentage change = [(150 - 663) / 663] x 100
Subtract the new number by the original number
150 - 663 = -513
-513 ÷ 663 = -0.7737556561085973
-0.7737556561085973 x 100 = -77.38%