-72.98% is the change from 951 to 257
Calculation steps:
[( 257 - 951 ) ÷ 951] x 100 = -72.98%
Formula
Percentage change = [(257 - 951) / 951] x 100
Subtract the new number by the original number
257 - 951 = -694
-694 ÷ 951 = -0.729758149316509
-0.729758149316509 x 100 = -72.98%