-74.6% is the change from 988 to 251
Calculation steps:
[( 251 - 988 ) ÷ 988] x 100 = -74.6%
Formula
Percentage change = [(251 - 988) / 988] x 100
Subtract the new number by the original number
251 - 988 = -737
-737 ÷ 988 = -0.7459514170040485
-0.7459514170040485 x 100 = -74.6%