-66.36% is the change from 758 to 255
Calculation steps:
[( 255 - 758 ) ÷ 758] x 100 = -66.36%
Formula
Percentage change = [(255 - 758) / 758] x 100
Subtract the new number by the original number
255 - 758 = -503
-503 ÷ 758 = -0.6635883905013192
-0.6635883905013192 x 100 = -66.36%