-92.2% is the change from 654 to 51
Calculation steps:
[( 51 - 654 ) ÷ 654] x 100 = -92.2%
Formula
Percentage change = [(51 - 654) / 654] x 100
Subtract the new number by the original number
51 - 654 = -603
-603 ÷ 654 = -0.9220183486238532
-0.9220183486238532 x 100 = -92.2%