-66.05% is the change from 757 to 257
Calculation steps:
[( 257 - 757 ) ÷ 757] x 100 = -66.05%
Formula
Percentage change = [(257 - 757) / 757] x 100
Subtract the new number by the original number
257 - 757 = -500
-500 ÷ 757 = -0.6605019815059445
-0.6605019815059445 x 100 = -66.05%