-72.72% is the change from 920 to 251
Calculation steps:
[( 251 - 920 ) ÷ 920] x 100 = -72.72%
Formula
Percentage change = [(251 - 920) / 920] x 100
Subtract the new number by the original number
251 - 920 = -669
-669 ÷ 920 = -0.7271739130434782
-0.7271739130434782 x 100 = -72.72%