-66.57% is the change from 987 to 330
Calculation steps:
[( 330 - 987 ) ÷ 987] x 100 = -66.57%
Formula
Percentage change = [(330 - 987) / 987] x 100
Subtract the new number by the original number
330 - 987 = -657
-657 ÷ 987 = -0.6656534954407295
-0.6656534954407295 x 100 = -66.57%