-97.42% is the change from 387 to 10
Calculation steps:
[( 10 - 387 ) ÷ 387] x 100 = -97.42%
Formula
Percentage change = [(10 - 387) / 387] x 100
Subtract the new number by the original number
10 - 387 = -377
-377 ÷ 387 = -0.9741602067183462
-0.9741602067183462 x 100 = -97.42%