-64.76% is the change from 210 to 74
Calculation steps:
[( 74 - 210 ) ÷ 210] x 100 = -64.76%
Formula
Percentage change = [(74 - 210) / 210] x 100
Subtract the new number by the original number
74 - 210 = -136
-136 ÷ 210 = -0.6476190476190476
-0.6476190476190476 x 100 = -64.76%