-16.11% is the change from 987 to 828
Calculation steps:
[( 828 - 987 ) ÷ 987] x 100 = -16.11%
Formula
Percentage change = [(828 - 987) / 987] x 100
Subtract the new number by the original number
828 - 987 = -159
-159 ÷ 987 = -0.16109422492401215
-0.16109422492401215 x 100 = -16.11%