-66.32% is the change from 763 to 257
Calculation steps:
[( 257 - 763 ) ÷ 763] x 100 = -66.32%
Formula
Percentage change = [(257 - 763) / 763] x 100
Subtract the new number by the original number
257 - 763 = -506
-506 ÷ 763 = -0.6631716906946264
-0.6631716906946264 x 100 = -66.32%