-73.71% is the change from 194 to 51
Calculation steps:
[( 51 - 194 ) ÷ 194] x 100 = -73.71%
Formula
Percentage change = [(51 - 194) / 194] x 100
Subtract the new number by the original number
51 - 194 = -143
-143 ÷ 194 = -0.7371134020618557
-0.7371134020618557 x 100 = -73.71%