-66.88% is the change from 154 to 51
Calculation steps:
[( 51 - 154 ) ÷ 154] x 100 = -66.88%
Formula
Percentage change = [(51 - 154) / 154] x 100
Subtract the new number by the original number
51 - 154 = -103
-103 ÷ 154 = -0.6688311688311688
-0.6688311688311688 x 100 = -66.88%