-63.35% is the change from 191 to 70
Calculation steps:
[( 70 - 191 ) ÷ 191] x 100 = -63.35%
Formula
Percentage change = [(70 - 191) / 191] x 100
Subtract the new number by the original number
70 - 191 = -121
-121 ÷ 191 = -0.6335078534031413
-0.6335078534031413 x 100 = -63.35%