-70.5% is the change from 505 to 149
Calculation steps:
[( 149 - 505 ) ÷ 505] x 100 = -70.5%
Formula
Percentage change = [(149 - 505) / 505] x 100
Subtract the new number by the original number
149 - 505 = -356
-356 ÷ 505 = -0.7049504950495049
-0.7049504950495049 x 100 = -70.5%