-71.04% is the change from 670 to 194
Calculation steps:
[( 194 - 670 ) ÷ 670] x 100 = -71.04%
Formula
Percentage change = [(194 - 670) / 670] x 100
Subtract the new number by the original number
194 - 670 = -476
-476 ÷ 670 = -0.7104477611940299
-0.7104477611940299 x 100 = -71.04%