-87.47% is the change from 407 to 51
Calculation steps:
[( 51 - 407 ) ÷ 407] x 100 = -87.47%
Formula
Percentage change = [(51 - 407) / 407] x 100
Subtract the new number by the original number
51 - 407 = -356
-356 ÷ 407 = -0.8746928746928747
-0.8746928746928747 x 100 = -87.47%