-66.09% is the change from 758 to 257
Calculation steps:
[( 257 - 758 ) ÷ 758] x 100 = -66.09%
Formula
Percentage change = [(257 - 758) / 758] x 100
Subtract the new number by the original number
257 - 758 = -501
-501 ÷ 758 = -0.6609498680738787
-0.6609498680738787 x 100 = -66.09%