-77.73% is the change from 651 to 145
Calculation steps:
[( 145 - 651 ) ÷ 651] x 100 = -77.73%
Formula
Percentage change = [(145 - 651) / 651] x 100
Subtract the new number by the original number
145 - 651 = -506
-506 ÷ 651 = -0.7772657450076805
-0.7772657450076805 x 100 = -77.73%