-6.79% is the change from 987 to 920
Calculation steps:
[( 920 - 987 ) ÷ 987] x 100 = -6.79%
Formula
Percentage change = [(920 - 987) / 987] x 100
Subtract the new number by the original number
920 - 987 = -67
-67 ÷ 987 = -0.06788247213779129
-0.06788247213779129 x 100 = -6.79%