-58.09% is the change from 661 to 277
Calculation steps:
[( 277 - 661 ) ÷ 661] x 100 = -58.09%
Formula
Percentage change = [(277 - 661) / 661] x 100
Subtract the new number by the original number
277 - 661 = -384
-384 ÷ 661 = -0.5809379727685325
-0.5809379727685325 x 100 = -58.09%