-70.61% is the change from 507 to 149
Calculation steps:
[( 149 - 507 ) ÷ 507] x 100 = -70.61%
Formula
Percentage change = [(149 - 507) / 507] x 100
Subtract the new number by the original number
149 - 507 = -358
-358 ÷ 507 = -0.7061143984220908
-0.7061143984220908 x 100 = -70.61%