-77% is the change from 387 to 89
Calculation steps:
[( 89 - 387 ) ÷ 387] x 100 = -77%
Formula
Percentage change = [(89 - 387) / 387] x 100
Subtract the new number by the original number
89 - 387 = -298
-298 ÷ 387 = -0.7700258397932817
-0.7700258397932817 x 100 = -77%