-22.39% is the change from 661 to 513
Calculation steps:
[( 513 - 661 ) ÷ 661] x 100 = -22.39%
Formula
Percentage change = [(513 - 661) / 661] x 100
Subtract the new number by the original number
513 - 661 = -148
-148 ÷ 661 = -0.22390317700453857
-0.22390317700453857 x 100 = -22.39%