-31.41% is the change from 987 to 677
Calculation steps:
[( 677 - 987 ) ÷ 987] x 100 = -31.41%
Formula
Percentage change = [(677 - 987) / 987] x 100
Subtract the new number by the original number
677 - 987 = -310
-310 ÷ 987 = -0.3140830800405269
-0.3140830800405269 x 100 = -31.41%