-65.65% is the change from 987 to 339
Calculation steps:
[( 339 - 987 ) ÷ 987] x 100 = -65.65%
Formula
Percentage change = [(339 - 987) / 987] x 100
Subtract the new number by the original number
339 - 987 = -648
-648 ÷ 987 = -0.6565349544072948
-0.6565349544072948 x 100 = -65.65%